Revert part of r16593.

network.h should only be included when CONFIG_NETWORK is set.

Originally committed as revision 17009 to svn://svn.ffmpeg.org/ffmpeg/trunk

cmdutils.c

@@ -38,7 +38,9 @@
 #include "libavcodec/opt.h"
 #include "cmdutils.h"
 #include "version.h"
+#if CONFIG_NETWORK
 #include "libavformat/network.h"
+#endif
 
 #undef exit