Remove another unnecessary call from MSW wxStaticBitmap

DeleteCurrentHandleIfNeeded() is already called from Free() which is
unconditionally called at the beginning of the function, so there is no
need to call it again.

src/msw/statbmp.cpp

@@ -329,8 +329,6 @@ void wxStaticBitmap::SetImageNoCopy( wxGDIImage* image)
 
     MSWReplaceImageHandle((WXLPARAM)handle);
 
-    DeleteCurrentHandleIfNeeded();
-
     m_currentHandle = (WXHANDLE)handle;
     m_ownsCurrentHandle = handle != handleOrig;