libvpx: Pull from upstream

source/libvpx/vp8/common/rtcd.c

Index: source/libvpx/vp8/common/rtcd.c
diff --git a/source/libvpx/vp8/common/rtcd.c b/source/libvpx/vp8/common/rtcd.c
index 0b371b094aa72ed9ad5e021f57a8e1ec2e7b55a1..ab0e9b47fe8d0cf667a20d524573cae0638996a9 100644
--- a/source/libvpx/vp8/common/rtcd.c
+++ b/source/libvpx/vp8/common/rtcd.c
@@ -7,15 +7,13 @@
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
-#include "vpx_config.h"
+#include "./vpx_config.h"
 #define RTCD_C
-#include "vp8_rtcd.h"
+#include "./vp8_rtcd.h"
 #include "vpx_ports/vpx_once.h"
 
-extern void vpx_scale_rtcd(void);
 
 void vp8_rtcd()
 {
-    vpx_scale_rtcd();
     once(setup_rtcd_internal);
 }