Remove erroneous -I../.. flag that points outside of the src directory.

Originally committed as revision 5621 to svn://svn.ffmpeg.org/ffmpeg/trunk

libpostproc/Makefile

@@ -15,7 +15,7 @@ SHARED_OBJS=postprocess_pic.o
 
 HEADERS = postprocess.h
 
-CFLAGS  = $(OPTFLAGS) $(MLIB_INC) -I. -I.. -I$(SRC_PATH)/libavcodec -I../.. $(EXTRA_INC)
+CFLAGS  = $(OPTFLAGS) $(MLIB_INC) -I. -I.. -I$(SRC_PATH)/libavcodec $(EXTRA_INC)
 # -I/usr/X11R6/include/
 
 include $(SRC_PATH)/common.mak