Remove unnecessary check whether x-coordinate >= 0

Several lines before there is a block terminating the function if rect.x < 0 (measure item call) so there is no need to check after this block whether rect.x >= 0.

src/propgrid/editors.cpp

@@ -824,8 +824,6 @@ void wxPropertyGrid::OnComboItemPaint( const wxPGComboBox* pCb,
     wxDC& dc = *pDc;
     dc.SetBrush(*wxWHITE_BRUSH);
 
-    if ( rect.x >= 0 )
-    {
     //
     // DrawItem call
     wxPGCellRenderer* renderer = NULL;
@@ -951,16 +949,6 @@ void wxPropertyGrid::OnComboItemPaint( const wxPGComboBox* pCb,
 
     if ( renderer )
         renderer->PostDrawCell(dc, this, *cell, renderFlags);
-    }
-    else
-    {
-        //
-        // MeasureItem call
-
-        p->OnCustomPaint( dc, rect, paintdata );
-        rect.height = paintdata.m_drawnHeight + 2;
-        rect.width = cis.x + wxCC_CUSTOM_IMAGE_MARGIN1 + wxCC_CUSTOM_IMAGE_MARGIN2 + 9;
-    }
 }
 
 static