diff --git a/src/plugins/clangrefactoring/clangrefactoring.qbs b/src/plugins/clangrefactoring/clangrefactoring.qbs
index 960a15a28b4..d76bca9f489 100644
--- a/src/plugins/clangrefactoring/clangrefactoring.qbs
+++ b/src/plugins/clangrefactoring/clangrefactoring.qbs
@@ -52,30 +52,12 @@ QtcPlugin {
         "clangquerytexteditorwidget.h",
         "clangrefactoringplugin.cpp",
         "clangrefactoringplugin.h",
-        "class.h",
-        "classesfilter.cpp",
-        "classesfilter.h",
-        "enum.h",
-        "function.h",
-        "functionsfilter.cpp",
-        "functionsfilter.h",
-        "include.h",
-        "includesfilter.cpp",
-        "includesfilter.h",
         "locatorfilter.cpp",
         "locatorfilter.h",
         "projectpartutilities.cpp",
         "projectpartutilities.h",
         "qtcreatorclangqueryfindfilter.cpp",
         "qtcreatorclangqueryfindfilter.h",
-        "qtcreatorclassesfilter.cpp",
-        "qtcreatorclassesfilter.h",
-        "qtcreatorfunctionsfilter.cpp",
-        "qtcreatorfunctionsfilter.h",
-        "qtcreatorincludesfilter.cpp",
-        "qtcreatorincludesfilter.h",
-        "qtcreatorlocatorfilter.cpp",
-        "qtcreatorlocatorfilter.h",
         "qtcreatorsearch.cpp",
         "qtcreatorsearch.h",
         "qtcreatorsearchhandle.cpp",
@@ -93,7 +75,6 @@ QtcPlugin {
         "refactoringprojectupdater.h",
         "searchhandle.cpp",
         "searchhandle.h",
-        "searchinterface.cpp",
         "searchinterface.h",
         "sourcelocations.h",
         "symbol.h",
@@ -101,7 +82,6 @@ QtcPlugin {
         "symbolsfindfilter.h",
         "symbolsfindfilterconfigwidget.cpp",
         "symbolsfindfilterconfigwidget.h",
-        "symbolquery.cpp",
         "symbolquery.h",
         "symbolqueryinterface.h"
     ]
diff --git a/src/plugins/clangrefactoring/searchinterface.cpp b/src/plugins/clangrefactoring/searchinterface.cpp
deleted file mode 100644
index 666da7eb262..00000000000
--- a/src/plugins/clangrefactoring/searchinterface.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 "searchinterface.h"
-
-namespace ClangRefactoring {
-
-SearchInterface::~SearchInterface()
-{
-
-}
-
-} // namespace ClangRefactoring
diff --git a/src/tools/clangpchmanagerbackend/clangpchmanagerbackend.qbs b/src/tools/clangpchmanagerbackend/clangpchmanagerbackend.qbs
index 0cec86cda79..a8a20d25248 100644
--- a/src/tools/clangpchmanagerbackend/clangpchmanagerbackend.qbs
+++ b/src/tools/clangpchmanagerbackend/clangpchmanagerbackend.qbs
@@ -43,19 +43,15 @@ QtcTool {
             "environment.h",
             "includecollector.cpp",
             "includecollector.h",
-            "pchcreatorinterface.cpp",
             "pchcreatorinterface.h",
             "pchcreator.cpp",
             "pchcreator.h",
             "pchgenerator.h",
-            "pchgeneratorinterface.cpp",
             "pchgeneratorinterface.h",
-            "pchgeneratornotifierinterface.cpp",
             "pchgeneratornotifierinterface.h",
             "pchmanagerserver.cpp",
             "pchmanagerserver.h",
             "pchnotcreatederror.h",
-            "projectpartsinterface.cpp",
             "projectpartsinterface.h",
             "projectparts.cpp",
             "projectparts.h",
diff --git a/src/tools/clangrefactoringbackend/source/symbolstorageinterface.cpp b/src/tools/clangrefactoringbackend/source/symbolstorageinterface.cpp
deleted file mode 100644
index dec03adc6a8..00000000000
--- a/src/tools/clangrefactoringbackend/source/symbolstorageinterface.cpp
+++ /dev/null
@@ -1,34 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2018 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 "symbolstorageinterface.h"
-
-namespace ClangBackEnd {
-
-SymbolStorageInterface::~SymbolStorageInterface()
-{
-}
-
-}