Git: Remove unused variable

Change-Id: Ic5c6986cf2b8b6c1249e1b6e10ee12173583e614
Reviewed-by: Christian Kandeler <christian.kandeler@theqtcompany.com>

src/plugins/git/gitplugin.h

@@ -238,8 +238,6 @@ private:
     QString                     m_submitRepository;
     QString                     m_commitMessageFileName;
     bool                        m_submitActionTriggered;
-
-    GitSettings m_settings;
 };
 
 } // namespace Git