Remove duplicate copy of nnapi_plugin.h.oss.

The correct copy of this file is in the directory
tensorflow/lite/core/shims/c/experimental/acceleration/configuration/
not
tensorflow/lite/core/shims/experimental/acceleration/configuration/c/

PiperOrigin-RevId: 410354220
Change-Id: Ibd4c08eb3fa5dd2c114938a0ac8a6e9e9ee245c6
diff --git a/tensorflow/lite/core/shims/experimental/acceleration/configuration/c/nnapi_plugin.h b/tensorflow/lite/core/shims/experimental/acceleration/configuration/c/nnapi_plugin.h
deleted file mode 100644
index f0191e2..0000000
--- a/tensorflow/lite/core/shims/experimental/acceleration/configuration/c/nnapi_plugin.h
+++ /dev/null
@@ -1,20 +0,0 @@
-/* Copyright 2020 The TensorFlow Authors. All Rights Reserved.
-
-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.
-==============================================================================*/
-#ifndef TENSORFLOW_LITE_CORE_SHIMS_EXPERIMENTAL_ACCELERATION_CONFIGURATION_C_H_
-#define TENSORFLOW_LITE_CORE_SHIMS_EXPERIMENTAL_ACCELERATION_CONFIGURATION_C_H_
-
-#include "tensorflow/lite/experimental/acceleration/configuration/c/nnapi_plugin.h"
-
-#endif  // TENSORFLOW_LITE_CORE_SHIMS_EXPERIMENTAL_ACCELERATION_CONFIGURATION_C_H_
diff --git a/tensorflow/opensource_only.files b/tensorflow/opensource_only.files
index 9a07f09..3ab5897 100644
--- a/tensorflow/opensource_only.files
+++ b/tensorflow/opensource_only.files
@@ -36,7 +36,6 @@
 tensorflow/lite/core/shims/cc/shims_test_util.h
 tensorflow/lite/core/shims/cc/tools/verifier.h
 tensorflow/lite/core/shims/cc_library_with_tflite.bzl
-tensorflow/lite/core/shims/experimental/acceleration/configuration/c/nnapi_plugin.h
 tensorflow/lite/core/shims/jni/jni_utils.cc
 tensorflow/lite/core/shims/jni/jni_utils.h
 tensorflow/lite/delegates/coreml/builders/BUILD