[PATCH] Fix gcc 4 compilation in bttv

extern declaration of static
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

drivers/media/video/bttv.h

@@ -219,7 +219,6 @@ struct tvcard
 };
 
 extern struct tvcard bttv_tvcards[];
-extern const unsigned int bttv_num_tvcards;
 
 /* identification / initialization of the card */
 extern void bttv_idcard(struct bttv *btv);