remove vp10

development has moved to the nextgenv2 branch and a snapshot from here
was used to seed aomedia

BUG=b/29457125

Change-Id: Iedaca11ec7870fb3a4e50b2c9ea0c2b056a0d3c0

test/encode_api_test.cc

@@ -25,9 +25,6 @@ TEST(EncodeAPI, InvalidParams) {
 #endif
 #if CONFIG_VP9_ENCODER
     &vpx_codec_vp9_cx_algo,
-#endif
-#if CONFIG_VP10_ENCODER
-    &vpx_codec_vp10_cx_algo,
 #endif
   };
   uint8_t buf[1] = {0};