Editor: cleanup special cases for snippets.

src/plugins/texteditor/basetexteditor.h

@@ -346,7 +346,6 @@ private slots:
     bool inFindScope(const QTextCursor &cursor);
     bool inFindScope(int selectionStart, int selectionEnd);
     void currentEditorChanged(Core::IEditor *editor);
-    void maybeEmitContentsChangedBecauseOfUndo();
 
 private:
     Internal::BaseTextEditorPrivate *d;
@@ -462,8 +461,6 @@ public:
     // Returns the text that needs to be inserted
     virtual QString insertParagraphSeparator(const QTextCursor &tc) const;
 
-    virtual void setNextChangeIsSnippetSafe();
-
 protected:
     static void countBracket(QChar open, QChar close, QChar c, int *errors, int *stillopen);