Stop setting current cell on first Ctrl-drag event

This is not necessary any longer as the current cell is changed on
Ctrl-click since the previous commit.

This commit is best viewed ignoring whitespace.

src/generic/grid.cpp

@@ -4483,14 +4483,8 @@ wxGrid::DoGridCellDrag(wxMouseEvent& event,
         SaveEditControlValue();
     }
 
-    switch ( event.GetModifiers() )
+    if ( !event.HasAnyModifiers() )
     {
-        case wxMOD_CONTROL:
-            if ( isFirstDrag )
-                SetGridCursor(coords);
-            break;
-
-        case wxMOD_NONE:
         if ( CanDragCell() )
         {
             if ( isFirstDrag )
@@ -4502,7 +4496,6 @@ wxGrid::DoGridCellDrag(wxMouseEvent& event,
                 return performDefault;
             }
         }
-            break;
     }
 
     // Edit the current selection block independently of the modifiers state.