Remove duplicate declaration

Change-Id: Ic8e52a89e0df816c38cd8ff1b7c53862b9a6dff2

vp9/common/vp9_enums.h

@@ -94,6 +94,12 @@ typedef enum {
   SRGB       = 7   // RGB
 } COLOR_SPACE;
 
+typedef enum {
+  VP9_LAST_FLAG = 1 << 0,
+  VP9_GOLD_FLAG = 1 << 1,
+  VP9_ALT_FLAG = 1 << 2,
+} VP9_REFFRAME;
+
 #ifdef __cplusplus
 }  // extern "C"
 #endif

vp9/decoder/vp9_decoder.h

@@ -37,12 +37,6 @@ typedef struct {
   int input_partition;
 } VP9D_CONFIG;
 
-typedef enum {
-  VP9_LAST_FLAG = 1,
-  VP9_GOLD_FLAG = 2,
-  VP9_ALT_FLAG = 4
-} VP9_REFFRAME;
-
 typedef struct VP9Decompressor {
   DECLARE_ALIGNED(16, MACROBLOCKD, mb);
 

vp9/encoder/vp9_onyx_int.h

@@ -411,12 +411,6 @@ typedef enum {
   ONETWO      = 3
 } VPX_SCALING;
 
-typedef enum {
-  VP9_LAST_FLAG = 1 << 0,
-  VP9_GOLD_FLAG = 1 << 1,
-  VP9_ALT_FLAG = 1 << 2,
-} VP9_REFFRAME;
-
 typedef enum {
   USAGE_LOCAL_FILE_PLAYBACK = 0,
   USAGE_STREAM_FROM_SERVER  = 1,