Remove some warnings about clashing signal indices.

src/plugins/designer/formwindowfile.h

@@ -69,8 +69,6 @@ public:
     bool writeFile(QFile &file, QString &errorString) const;
 
 signals:
-    // IFile
-    void changed();
     // Internal
     void reload(const QString &);
     void setDisplayName(const QString &);

src/plugins/texteditor/basetextdocument.h

@@ -114,7 +114,6 @@ public:
 
 signals:
     void titleChanged(QString title);
-    void changed();
     void aboutToReload();
     void reloaded();