- removed v_video.h include from portals.h

This has no business in a play related file which also made no use of it.

src/scripting/vmthunks.cpp

@@ -48,6 +48,7 @@
 #include "p_setup.h"
 #include "i_music.h"
 #include "am_map.h"
+#include "v_video.h"
 
 DVector2 AM_GetPosition();
 int Net_GetLatency(int *ld, int *ad);