Remove unneeded stuff

Change-Id: I2771765bd331e81e09141a2f3088fb364d4bf90d
Reviewed-by: Eike Ziller <eike.ziller@digia.com>

src/plugins/diffeditor/diffeditorfile.cpp

@@ -39,8 +39,7 @@ namespace Internal {
 
 DiffEditorFile::DiffEditorFile(const QString &mimeType, QObject *parent) :
     Core::IDocument(parent),
-    m_mimeType(mimeType),
-    m_modified(false)
+    m_mimeType(mimeType)
 {
     setDisplayName(QCoreApplication::translate("DiffEditor", Constants::DIFF_EDITOR_DISPLAY_NAME));
     setTemporary(true);
@@ -52,21 +51,12 @@ bool DiffEditorFile::setContents(const QByteArray &contents)
     return true;
 }
 
-void DiffEditorFile::setModified(bool modified)
-{
-    if (m_modified == modified)
-        return;
-    m_modified = modified;
-    emit changed();
-}
-
 bool DiffEditorFile::save(QString *errorString, const QString &fileName, bool autoSave)
 {
-    emit saveMe(errorString, fileName, autoSave);
-    if (!errorString->isEmpty())
-        return false;
-    emit changed();
-    return true;
+    Q_UNUSED(errorString)
+    Q_UNUSED(fileName)
+    Q_UNUSED(autoSave)
+    return false;
 }
 
 QString DiffEditorFile::mimeType() const
@@ -86,7 +76,7 @@ bool DiffEditorFile::reload(QString *errorString, ReloadFlag flag, ChangeType ty
     Q_UNUSED(errorString)
     Q_UNUSED(flag)
     Q_UNUSED(type)
-    return true;
+    return false;
 }
 
 } // namespace Internal

src/plugins/diffeditor/diffeditorfile.h

@@ -36,9 +36,6 @@
 
 namespace DiffEditor {
 
-class DiffEditorWidget;
-class DiffEditorFile;
-
 namespace Internal {
 
 class DiffEditorFile : public Core::IDocument
@@ -52,21 +49,15 @@ public:
     QString defaultPath() const { return QString(); }
     QString suggestedFileName() const { return QString(); }
 
-    bool isModified() const { return m_modified; }
+    bool isModified() const { return false; }
     QString mimeType() const;
     bool isSaveAsAllowed() const { return false; }
     bool save(QString *errorString, const QString &fileName, bool autoSave);
     ReloadBehavior reloadBehavior(ChangeTrigger state, ChangeType type) const;
     bool reload(QString *errorString, ReloadFlag flag, ChangeType type);
 
-    void setModified(bool modified = true);
-
-signals:
-    void saveMe(QString *errorString, const QString &fileName, bool autoSave);
-
 private:
     const QString m_mimeType;
-    bool m_modified;
 };
 
 } // namespace Internal