libvpx: Pull from upstream

source/libvpx/vp9/common/vp9_common.h

Index: source/libvpx/vp9/common/vp9_common.h
diff --git a/source/libvpx/vp9/common/vp9_common.h b/source/libvpx/vp9/common/vp9_common.h
index d06b8e0405e3180f833c5f85933e9b6389e7bf52..9c2d7791e759db8c0aa5d2681158b5278171aaf1 100644
--- a/source/libvpx/vp9/common/vp9_common.h
+++ b/source/libvpx/vp9/common/vp9_common.h
@@ -27,12 +27,6 @@ extern "C" {
 #define MIN(x, y) (((x) < (y)) ? (x) : (y))
 #define MAX(x, y) (((x) > (y)) ? (x) : (y))
 
-#define ROUND_POWER_OF_TWO(value, n) \
-    (((value) + (1 << ((n) - 1))) >> (n))
-
-#define ALIGN_POWER_OF_TWO(value, n) \
-    (((value) + ((1 << (n)) - 1)) & ~((1 << (n)) - 1))
-
 // Only need this for fixed-size arrays, for structs just assign.
 #define vp9_copy(dest, src) {            \
     assert(sizeof(dest) == sizeof(src)); \
@@ -83,9 +77,6 @@ static INLINE uint16_t clip_pixel_highbd(int val, int bd) {
 typedef int64_t tran_high_t;
 typedef int32_t tran_low_t;
 
-#define CONVERT_TO_SHORTPTR(x) ((uint16_t*)(((uintptr_t)x) << 1))
-#define CONVERT_TO_BYTEPTR(x) ((uint8_t*)(((uintptr_t)x) >> 1 ))
-
 #else
 
 // Note: