diff --git a/mediapipe/calculators/core/BUILD b/mediapipe/calculators/core/BUILD
index 99a63f63..7c5dfe81 100644
--- a/mediapipe/calculators/core/BUILD
+++ b/mediapipe/calculators/core/BUILD
@@ -381,17 +381,6 @@ cc_library(
     alwayslink = 1,
 )
 
-cc_library(
-    name = "clip_detection_vector_size_calculator",
-    srcs = ["clip_detection_vector_size_calculator.cc"],
-    deps = [
-        ":clip_vector_size_calculator",
-        "//mediapipe/framework:calculator_framework",
-        "//mediapipe/framework/formats:detection_cc_proto",
-    ],
-    alwayslink = 1,
-)
-
 cc_test(
     name = "clip_vector_size_calculator_test",
     srcs = ["clip_vector_size_calculator_test.cc"],
diff --git a/mediapipe/calculators/core/clip_detection_vector_size_calculator.cc b/mediapipe/calculators/core/clip_detection_vector_size_calculator.cc
deleted file mode 100644
index 55bcf2fe..00000000
--- a/mediapipe/calculators/core/clip_detection_vector_size_calculator.cc
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright 2019 The MediaPipe Authors.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#include <vector>
-
-#include "mediapipe/calculators/core/clip_vector_size_calculator.h"
-#include "mediapipe/framework/formats/detection.pb.h"
-
-namespace mediapipe {
-
-typedef ClipVectorSizeCalculator<::mediapipe::Detection>
-    ClipDetectionVectorSizeCalculator;
-REGISTER_CALCULATOR(ClipDetectionVectorSizeCalculator);
-
-}  // namespace mediapipe