Remove some scripts that were used by the valgrind bots.

tools/valgrind/valgrind.gni

Index: tools/valgrind/valgrind.gni
diff --git a/tools/valgrind/valgrind.gni b/tools/valgrind/valgrind.gni
deleted file mode 100644
index 84e8e42e564ef795976ac084dc3da6a38c020980..0000000000000000000000000000000000000000
--- a/tools/valgrind/valgrind.gni
+++ /dev/null
@@ -1,64 +0,0 @@
-# Copyright 2016 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.
-
-import("//build_overrides/build.gni")
-
-valgrind_dependencies = [
-  "asan/asan_symbolize.py",
-  "asan/third_party/__init__.py",
-  "asan/third_party/asan_symbolize.py",
-  "browser_wrapper_win.py",
-  "chrome_tests.bat",
-  "chrome_tests.py",
-  "chrome_tests.sh",
-  "common.py",
-  "drmemory.bat",
-  "drmemory_analyze.py",
-  "fixed_suppressions.sh",
-  "gdb_helper.py",
-  "locate_valgrind.sh",
-  "memcheck/suppressions.txt",
-  "memcheck/suppressions_linux.txt",
-  "memcheck_analyze.py",
-  "regrind.sh",
-  "scan-build.py",
-  "suppressions.py",
-  "test_suppressions.py",
-  "unused_suppressions.py",
-  "valgrind.sh",
-  "valgrind_test.py",
-  "waterfall.sh",
-]
-
-if (build_with_chromium) {
-  valgrind_dependencies += [
-    "gtest_exclude/ash_unittests.gtest-memcheck.txt",
-    "gtest_exclude/aura_unittests.gtest.txt",
-    "gtest_exclude/base_unittests.gtest.txt",
-    "gtest_exclude/base_unittests.gtest_win-8.txt",
-    "gtest_exclude/base_unittests.gtest_win32.txt",
-    "gtest_exclude/blink_platform_unittests.gtest_win32.txt",
-    "gtest_exclude/browser_tests.gtest-memcheck.txt",
-    "gtest_exclude/chromeos_unittests.gtest.txt",
-    "gtest_exclude/components_unittests.gtest.txt",
-    "gtest_exclude/content_unittests.gtest.txt",
-    "gtest_exclude/extensions_unittests.gtest-memcheck.txt",
-    "gtest_exclude/interactive_ui_tests.gtest.txt",
-    "gtest_exclude/ipc_tests.gtest.txt",
-    "gtest_exclude/media_unittests.gtest.txt",
-    "gtest_exclude/message_center_unittests.gtest.txt",
-    "gtest_exclude/net_unittests.gtest-memcheck.txt",
-    "gtest_exclude/net_unittests.gtest.txt",
-    "gtest_exclude/net_unittests.gtest_linux.txt",
-    "gtest_exclude/remoting_unittests.gtest_win-8.txt",
-    "gtest_exclude/sandbox_linux_unittests.gtest.txt",
-    "gtest_exclude/suppressions.txt",
-    "gtest_exclude/sync_unit_tests.gtest-asan.txt",
-    "gtest_exclude/ui_base_unittests.gtest-memcheck.txt",
-    "gtest_exclude/ui_unittests.gtest-memcheck_linux.txt",
-    "gtest_exclude/unit_tests.gtest-memcheck.txt",
-    "gtest_exclude/unit_tests.gtest.txt",
-    "gtest_exclude/unit_tests.gtest_linux.txt",
-  ]
-}