patch 9.0.0657: too many #ifdefs

Problem:    Too many #ifdefs.
Solution:   Graduate the +cmdwin feature.  Now the tiny and small builds are
            equal, drop the small build.  (Martin Tournoij, closes #11268)
diff --git a/src/gui.c b/src/gui.c
index b9217b4..b245002 100644
--- a/src/gui.c
+++ b/src/gui.c
@@ -3844,11 +3844,7 @@
 	return FALSE;
 
     // Don't put events in the input queue now.
-    if (hold_gui_events
-# ifdef FEAT_CMDWIN
-	    || cmdwin_type != 0
-# endif
-	    )
+    if (hold_gui_events || cmdwin_type != 0)
     {
 	// Set it back to the current tab page.
 	gui_mch_set_curtab(tabpage_index(curtab));
@@ -3993,10 +3989,8 @@
     if (hold_gui_events)
 	return;
 
-#ifdef FEAT_CMDWIN
     if (cmdwin_type != 0 && sb->wp != curwin)
 	return;
-#endif
 
     if (still_dragging)
     {