Remove testing/fuzzers/unittest_main.cc.

It is not being used. (anymore?)

Change-Id: Ida386ef8dbbeef662d16ae70274e64bf6ce7941e
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/54530
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
diff --git a/testing/fuzzers/unittest_main.cc b/testing/fuzzers/unittest_main.cc
deleted file mode 100644
index f6b29e4..0000000
--- a/testing/fuzzers/unittest_main.cc
+++ /dev/null
@@ -1,41 +0,0 @@
-// Copyright 2015 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// A simple unit-test style driver for libfuzzer tests.
-// Usage: <fuzzer_test> <file>...
-
-#include <fstream>
-#include <iostream>
-#include <iterator>
-#include <vector>
-
-// Libfuzzer API.
-extern "C" {
-// User function.
-int LLVMFuzzerTestOneInput(const unsigned char* data, size_t size);
-// Initialization function.
-__attribute__((weak)) int LLVMFuzzerInitialize(int* argc, char*** argv);
-}
-
-std::vector<char> readFile(std::string path) {
-  std::ifstream in(path);
-  return std::vector<char>((std::istreambuf_iterator<char>(in)),
-                           std::istreambuf_iterator<char>());
-}
-
-int main(int argc, char** argv) {
-  if (argc == 1) {
-    std::cerr << "Usage: " << argv[0] << " <file>..." << std::endl;
-    exit(1);
-  }
-
-  if (LLVMFuzzerInitialize)
-    LLVMFuzzerInitialize(&argc, &argv);
-
-  for (int i = 1; i < argc; ++i) {
-    std::cout << argv[i] << std::endl;
-    auto v = readFile(argv[i]);
-    LLVMFuzzerTestOneInput((const unsigned char*)v.data(), v.size());
-  }
-}