Fix vertical positioning of text field in the combo box editor associated with wxPG property under wxMSW.

Vertical position of text field in wxOwnerDrawnComboBox control (instantiated at property selection) doesn't need any special adjustment.

Closes #16556.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@77687 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/propgrid/editors.cpp

@@ -700,14 +700,14 @@ public:
     virtual void PositionTextCtrl( int textCtrlXAdjust,
                                    int WXUNUSED(textCtrlYAdjust) ) wxOVERRIDE
     {
-        wxPropertyGrid* pg = GetGrid();
     #ifdef wxPG_TEXTCTRLXADJUST
         textCtrlXAdjust = wxPG_TEXTCTRLXADJUST -
                           (wxPG_XBEFOREWIDGET+wxPG_CONTROL_MARGIN+1) - 1,
     #endif
         wxOwnerDrawnComboBox::PositionTextCtrl(
             textCtrlXAdjust,
-            pg->GetSpacingY() + 2
+            0 // Under MSW vertical position is already properly adjusted.
+              // Note: This parameter is not used by other ports.
         );
     }