diff --git a/test/testsupport/file_utils.cc b/test/testsupport/file_utils.cc
index 3f91388e32..5ed5a1c0a1 100644
--- a/test/testsupport/file_utils.cc
+++ b/test/testsupport/file_utils.cc
@@ -85,11 +85,6 @@ bool FileExists(absl::string_view file_name) {
   return stat(std::string(file_name).c_str(), &file_info) == 0;
 }
 
-bool FileExists(const std::string& file_name) {
-  struct stat file_info = {0};
-  return stat(file_name.c_str(), &file_info) == 0;
-}
-
 bool DirExists(absl::string_view directory_name) {
   struct stat directory_info = {0};
   return stat(std::string(directory_name).c_str(), &directory_info) == 0 &&
diff --git a/test/testsupport/file_utils.h b/test/testsupport/file_utils.h
index 96ce91b95f..ab80ca4454 100644
--- a/test/testsupport/file_utils.h
+++ b/test/testsupport/file_utils.h
@@ -92,7 +92,6 @@ bool RemoveFile(absl::string_view file_name);
 // TOOD(alito): Merge these once absl::string_view adoption is complete for this
 // file.
 bool FileExists(absl::string_view file_name);
-bool FileExists(const std::string& file_name);
 
 // Checks if a directory exists.
 bool DirExists(absl::string_view directory_name);
diff --git a/test/testsupport/file_utils_unittest.cc b/test/testsupport/file_utils_unittest.cc
index f82f4ea004..1e454e35a3 100644
--- a/test/testsupport/file_utils_unittest.cc
+++ b/test/testsupport/file_utils_unittest.cc
@@ -198,13 +198,12 @@ TEST_F(FileUtilsTest, GetFileSizeExistingFile) {
   ASSERT_GT(fprintf(file, "%s", "Dummy data"), 0)
       << "Failed to write to file: " << temp_filename;
   fclose(file);
-  ASSERT_GT(webrtc::test::GetFileSize(std::string(temp_filename.c_str())), 0u);
+  ASSERT_GT(webrtc::test::GetFileSize(temp_filename), 0u);
   remove(temp_filename.c_str());
 }
 
 TEST_F(FileUtilsTest, GetFileSizeNonExistingFile) {
-  ASSERT_EQ(0u, webrtc::test::GetFileSize(
-                    absl::string_view("non-existing-file.tmp")));
+  ASSERT_EQ(0u, webrtc::test::GetFileSize("non-existing-file.tmp"));
 }
 
 TEST_F(FileUtilsTest, DirExists) {