Codechange: Move includes for common STL headers to stdafx.

src/video/cocoa/cocoa_v.mm

@@ -44,7 +44,6 @@
 
 #import <sys/param.h> /* for MAXPATHLEN */
 #import <sys/time.h> /* gettimeofday */
-#include <array>
 
 /* The 10.12 SDK added new names for some enum constants and
  * deprecated the old ones. As there's no functional change in any

src/video/cocoa/cocoa_wnd.mm

@@ -34,7 +34,6 @@
 #include "../../window_gui.h"
 #include "../../spritecache.h"
 #include "../../toolbar_gui.h"
-#include <array>
 
 #include "table/sprites.h"