Remove unnecessary wxSearchCtrl::DoMoveWindow() override

There is no need to override this virtual function, if the control size
changes, a wxEVT_SIZE event is generated in any case, resulting in a
call to LayoutControls() without explicitly calling it from here.

include/wx/generic/srchctlg.h

@@ -194,7 +194,6 @@ protected:
 
     // override the base class virtuals involved into geometry calculations
     virtual wxSize DoGetBestClientSize() const wxOVERRIDE;
-    virtual void DoMoveWindow(int x, int y, int width, int height) wxOVERRIDE;
 
     virtual void RecalcBitmaps();