diff --git a/src/plugins/qmljstools/qmljsinterpreter.cpp b/src/plugins/qmljstools/qmljsinterpreter.cpp
deleted file mode 100644
index a8e855a5323..00000000000
--- a/src/plugins/qmljstools/qmljsinterpreter.cpp
+++ /dev/null
@@ -1,83 +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 "qmljsinterpreter.h"
-
-namespace QmlJSTools {
-namespace Internal {
-
-bool QmlJSInterpreter::canEvaluate(QString code)
-{
-    int yyaction = 0;
-    int yytoken = -1;
-    int yytos = -1;
-
-    setCode(code, 1);
-    m_tokens.append(T_FEED_JS_PROGRAM);
-
-    do {
-        if (++yytos == m_stateStack.size())
-            m_stateStack.resize(m_stateStack.size() * 2);
-
-        m_stateStack[yytos] = yyaction;
-
-again:
-        if (yytoken == -1 && action_index[yyaction] != -TERMINAL_COUNT) {
-            if (m_tokens.isEmpty())
-                yytoken = lex();
-            else
-                yytoken = m_tokens.takeFirst();
-        }
-
-        yyaction = t_action(yyaction, yytoken);
-        if (yyaction > 0) {
-            if (yyaction == ACCEPT_STATE) {
-                --yytos;
-                return true;
-            }
-            yytoken = -1;
-        } else if (yyaction < 0) {
-            const int ruleno = -yyaction - 1;
-            yytos -= rhs[ruleno];
-            yyaction = nt_action(m_stateStack[yytos], lhs[ruleno] - TERMINAL_COUNT);
-        }
-    } while (yyaction);
-
-    const int errorState = m_stateStack[yytos];
-    if (t_action(errorState, T_AUTOMATIC_SEMICOLON) && canInsertAutomaticSemicolon(yytoken)) {
-        yyaction = errorState;
-        m_tokens.prepend(yytoken);
-        yytoken = T_SEMICOLON;
-        goto again;
-    }
-
-    if (yytoken != EOF_SYMBOL)
-        return true;
-
-    return false;
-}
-
-} // namespace Internal
-} // namespace QmlJSTools
diff --git a/src/plugins/qmljstools/qmljsinterpreter.h b/src/plugins/qmljstools/qmljsinterpreter.h
deleted file mode 100644
index b3d1f8c717b..00000000000
--- a/src/plugins/qmljstools/qmljsinterpreter.h
+++ /dev/null
@@ -1,56 +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.
-**
-****************************************************************************/
-
-#pragma once
-
-#include <qmljs/parser/qmljslexer_p.h>
-#include <qmljs/parser/qmljsengine_p.h>
-
-#include <QVector>
-#include <QString>
-#include <QList>
-
-namespace QmlJSTools {
-namespace Internal {
-
-class QmlJSInterpreter: QmlJS::Lexer
-{
-public:
-    QmlJSInterpreter()
-        : Lexer(&m_engine),
-          m_stateStack(128)
-    {
-    }
-
-    bool canEvaluate(QString code);
-
-private:
-    QmlJS::Engine m_engine;
-    QVector<int> m_stateStack;
-    QList<int> m_tokens;
-};
-
-} // namespace Internal
-} // namespace QmlJSTools