diff --git a/api/test/audioproc_float.cc b/api/test/audioproc_float.cc
index c8d7ff7193..2e0f15c4fb 100644
--- a/api/test/audioproc_float.cc
+++ b/api/test/audioproc_float.cc
@@ -31,14 +31,5 @@ int AudioprocFloat(std::unique_ptr<AudioProcessingBuilder> ap_builder,
                             /*processed_capture_samples=*/nullptr);
 }
 
-int AudioprocFloat(std::unique_ptr<AudioProcessingBuilder> ap_builder,
-                   int argc,
-                   char* argv[],
-                   absl::string_view input_aecdump,
-                   std::vector<float>* processed_capture_samples) {
-  return AudioprocFloatImpl(std::move(ap_builder), argc, argv, input_aecdump,
-                            processed_capture_samples);
-}
-
 }  // namespace test
 }  // namespace webrtc
diff --git a/api/test/audioproc_float.h b/api/test/audioproc_float.h
index 021bc732e1..dbdd9348e7 100644
--- a/api/test/audioproc_float.h
+++ b/api/test/audioproc_float.h
@@ -53,18 +53,6 @@ int AudioprocFloat(std::unique_ptr<AudioProcessingBuilder> ap_builder,
                    int argc,
                    char* argv[]);
 
-// Interface for the audio processing simulation utility, which is similar to
-// the one above, but which adds the option of receiving the input as a string
-// and returning the output as an array. The first three arguments fulfill the
-// same purpose as above. Pass the `input_aecdump` to provide the content of an
-// AEC dump file as a string. After the simulation is completed,
-// `processed_capture_samples` will contain the the samples processed on the
-// capture side.
-int AudioprocFloat(std::unique_ptr<AudioProcessingBuilder> ap_builder,
-                   int argc,
-                   char* argv[],
-                   absl::string_view input_aecdump,
-                   std::vector<float>* processed_capture_samples);
 }  // namespace test
 }  // namespace webrtc