Remove superfluous extern variable declaration.

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@17971 b3059339-0415-0410-9bf9-f77b7e298cf2

libmpdemux/network.c

@@ -37,7 +37,6 @@
 
 #include "version.h"
 
-extern int verbose;
 extern int stream_cache_size;
 
 extern int mp_input_check_interrupt(int time);

libvo/vo_dfbmga.c

@@ -47,8 +47,6 @@ static vo_info_t info = {
 
 LIBVO_EXTERN(dfbmga)
 
-extern int verbose;
-
 /******************************
 *	   directfb 	      *
 ******************************/

libvo/vo_gif89a.c

@@ -70,8 +70,6 @@ static vo_info_t info = {
 
 LIBVO_EXTERN(gif89a)
 
-extern int verbose;
-
 
 // how many frames per second we are aiming for during output.
 static float target_fps;