AndroidDebug: Removed unused gdbServerPort member variable

Change-Id: I4804e46cec3285280bcea28e7900c8b07d487fb6
Reviewed-by: hjk <hjk121@nokiamail.com>

src/plugins/android/androiddebugsupport.h

@@ -64,8 +64,6 @@ private:
     Debugger::DebuggerRunControl* m_runControl;
     AndroidRunner * const m_runner;
     const QString m_dumperLib;
-
-    int m_gdbServerPort;
 };
 
 } // namespace Internal