diff --git a/src/libs/clangsupport/clangpathwatcherinterface.cpp b/src/libs/clangsupport/clangpathwatcherinterface.cpp
deleted file mode 100644
index 7862f4d0fd5..00000000000
--- a/src/libs/clangsupport/clangpathwatcherinterface.cpp
+++ /dev/null
@@ -1,35 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of Qt Creator.
-**
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 3 as published by the Free Software
-** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-3.0.html.
-**
-****************************************************************************/
-
-#include "clangpathwatcherinterface.h"
-
-namespace ClangBackEnd {
-
-ClangPathWatcherInterface::~ClangPathWatcherInterface()
-{
-
-}
-
-} // namespace ClangBackEnd
diff --git a/src/libs/clangsupport/clangpathwatchernotifier.cpp b/src/libs/clangsupport/clangpathwatchernotifier.cpp
deleted file mode 100644
index ce596a9f776..00000000000
--- a/src/libs/clangsupport/clangpathwatchernotifier.cpp
+++ /dev/null
@@ -1,32 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of Qt Creator.
-**
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 3 as published by the Free Software
-** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-3.0.html.
-**
-****************************************************************************/
-
-#include "clangpathwatchernotifier.h"
-
-namespace ClangBackEnd {
-
-ClangPathWatcherNotifier::~ClangPathWatcherNotifier() = default;
-
-} // namespace ClangBackEnd
diff --git a/src/libs/clangsupport/ipcclientinterface.cpp b/src/libs/clangsupport/ipcclientinterface.cpp
deleted file mode 100644
index 76f5d81eea0..00000000000
--- a/src/libs/clangsupport/ipcclientinterface.cpp
+++ /dev/null
@@ -1,35 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of Qt Creator.
-**
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 3 as published by the Free Software
-** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-3.0.html.
-**
-****************************************************************************/
-
-#include "ipcclientinterface.h"
-
-namespace ClangBackEnd {
-
-IpcClientInterface::IpcClientInterface()
-{
-
-}
-
-} // namespace ClangBackEnd
diff --git a/src/libs/clangsupport/ipcinterface.cpp b/src/libs/clangsupport/ipcinterface.cpp
deleted file mode 100644
index dc579a49f9d..00000000000
--- a/src/libs/clangsupport/ipcinterface.cpp
+++ /dev/null
@@ -1,35 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of Qt Creator.
-**
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 3 as published by the Free Software
-** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-3.0.html.
-**
-****************************************************************************/
-
-#include "ipcinterface.h"
-
-namespace ClangBackEnd {
-
-IpcInterface::~IpcInterface()
-{
-}
-
-} // namespace ClangBackEnd
-
diff --git a/src/libs/sqlite/sqlitetransaction.cpp b/src/libs/sqlite/sqlitetransaction.cpp
deleted file mode 100644
index b2ebd101a1a..00000000000
--- a/src/libs/sqlite/sqlitetransaction.cpp
+++ /dev/null
@@ -1,38 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of Qt Creator.
-**
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 3 as published by the Free Software
-** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-3.0.html.
-**
-****************************************************************************/
-
-#include "sqlitetransaction.h"
-
-#include "sqlitedatabase.h"
-#include "sqlitedatabasebackend.h"
-#include "sqlitewritestatement.h"
-
-namespace Sqlite {
-
-TransactionInterface::~TransactionInterface()
-{
-}
-
-} // namespace Sqlite