Remove vertical wxTextCtrl adjustment hacks for wxMSW in wxComboCtrl code.
Because wxTextCtrl used to wrongly report its best size in wxNO_BORDER case
under MSW, wxComboCtrl manually adjusted its position to work around this.
However since r69066 wxTextCtrl::GetBestSize() was fixed and now these
adjustments resulted in wrong vertical position for the control.
Just remove all manual adjustments completely now to fix this.
Closes #13722.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@69942
c3d73ce0-8a6f-49c7-b76d-
6d57e0e08775