clientv3: disable retry for mutable KV RPCs

Was retrying when it shouldn't, causing multiple puts

clientv3/retry.go

@@ -101,35 +101,19 @@ type retryWriteKVClient struct {
 }
 
 func (rkv *retryWriteKVClient) Put(ctx context.Context, in *pb.PutRequest, opts ...grpc.CallOption) (resp *pb.PutResponse, err error) {
-	err = rkv.retryf(ctx, func(rctx context.Context) error {
-		resp, err = rkv.KVClient.Put(rctx, in, opts...)
-		return err
-	})
-	return resp, err
+	return rkv.KVClient.Put(ctx, in, opts...)
 }
 
 func (rkv *retryWriteKVClient) DeleteRange(ctx context.Context, in *pb.DeleteRangeRequest, opts ...grpc.CallOption) (resp *pb.DeleteRangeResponse, err error) {
-	err = rkv.retryf(ctx, func(rctx context.Context) error {
-		resp, err = rkv.KVClient.DeleteRange(rctx, in, opts...)
-		return err
-	})
-	return resp, err
+	return rkv.KVClient.DeleteRange(ctx, in, opts...)
 }
 
 func (rkv *retryWriteKVClient) Txn(ctx context.Context, in *pb.TxnRequest, opts ...grpc.CallOption) (resp *pb.TxnResponse, err error) {
-	err = rkv.retryf(ctx, func(rctx context.Context) error {
-		resp, err = rkv.KVClient.Txn(rctx, in, opts...)
-		return err
-	})
-	return resp, err
+	return rkv.KVClient.Txn(ctx, in, opts...)
 }
 
 func (rkv *retryWriteKVClient) Compact(ctx context.Context, in *pb.CompactionRequest, opts ...grpc.CallOption) (resp *pb.CompactionResponse, err error) {
-	err = rkv.retryf(ctx, func(rctx context.Context) error {
-		resp, err = rkv.KVClient.Compact(rctx, in, opts...)
-		return err
-	})
-	return resp, err
+	return rkv.KVClient.Compact(ctx, in, opts...)
 }
 
 type retryLeaseClient struct {