Moved the MIN() macro to the helper include.

Removed multiple definitions of the MIN() macro from existing
locations and unified with a single definition. Updated sources
to use the shared version.

Signed-off-by: Jon A. Cruz <jonc@osg.samsung.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Bryce Harrington <bryce@osg.samsung.com>

src/compositor.h

@@ -45,10 +45,6 @@ extern "C" {
 #include "zalloc.h"
 #include "timeline-object.h"
 
-#ifndef MIN
-#define MIN(x,y) (((x) < (y)) ? (x) : (y))
-#endif
-
 #define container_of(ptr, type, member) ({				\
 	const __typeof__( ((type *)0)->member ) *__mptr = (ptr);	\
 	(type *)( (char *)__mptr - offsetof(type,member) );})