Remove bogus commented out include line.

git-svn-id: file:///var/local/repositories/ffmpeg/trunk@6571 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

libpostproc/Makefile

@@ -16,7 +16,6 @@ SHARED_OBJS=postprocess_pic.o
 HEADERS = postprocess.h
 
 CFLAGS  = -I.. -I$(SRC_PATH)/libavutil $(OPTFLAGS)
-# -I/usr/X11R6/include/
 
 include $(SRC_PATH)/common.mak