Remove an unused typedef

Change-Id: Ie0eb9ac4529db00a322511e5241a59b501c289b7

vp8/common/loopfilter.c

diff --git a/vp8/common/loopfilter.c b/vp8/common/loopfilter.c
index 19857a7..7a07e76 100644
--- a/vp8/common/loopfilter.c
+++ b/vp8/common/loopfilter.c
@@ -15,7 +15,6 @@
 #include "onyxc_int.h"
 #include "vpx_mem/vpx_mem.h"
 
-typedef unsigned char uc;
 
 static void lf_init_lut(loop_filter_info_n *lfi)
 {