[Opus] Update to v1.2.1

third_party/opus/src/silk/MacroCount.h

Index: third_party/opus/src/silk/MacroCount.h
diff --git a/third_party/opus/src/silk/MacroCount.h b/third_party/opus/src/silk/MacroCount.h
index 834817d058b9e9e4b8e7c244a9ce735278cf3544..78100ffedeb29061809327309599863a4dc4af48 100644
--- a/third_party/opus/src/silk/MacroCount.h
+++ b/third_party/opus/src/silk/MacroCount.h
@@ -319,14 +319,6 @@ static OPUS_INLINE opus_int32 silk_ADD_POS_SAT32(opus_int64 a, opus_int64 b){
     return(tmp);
 }
 
-#undef silk_ADD_POS_SAT64
-static OPUS_INLINE opus_int64 silk_ADD_POS_SAT64(opus_int64 a, opus_int64 b){
-    opus_int64 tmp;
-    ops_count += 1;
-    tmp = ((((a)+(b)) & 0x8000000000000000LL) ? silk_int64_MAX : ((a)+(b)));
-    return(tmp);
-}
-
 #undef    silk_LSHIFT8
 static OPUS_INLINE opus_int8 silk_LSHIFT8(opus_int8 a, opus_int32 shift){
     opus_int8 ret;
@@ -699,7 +691,7 @@ return(ret);
 
 
 #undef silk_LIMIT_32
-static OPUS_INLINE opus_int silk_LIMIT_32(opus_int32 a, opus_int32 limit1, opus_int32 limit2)
+static OPUS_INLINE opus_int32 silk_LIMIT_32(opus_int32 a, opus_int32 limit1, opus_int32 limit2)
 {
     opus_int32 ret;
     ops_count += 6;