Remove has_valgrind.py - the bots now set this flag explicitly

gypfiles/has_valgrind.py

Index: gypfiles/has_valgrind.py
diff --git a/gypfiles/has_valgrind.py b/gypfiles/has_valgrind.py
deleted file mode 100755
index 83a848d50b3049b015e2e8718d5e6ad9add6779c..0000000000000000000000000000000000000000
--- a/gypfiles/has_valgrind.py
+++ /dev/null
@@ -1,21 +0,0 @@
-#!/usr/bin/env python
-# Copyright 2016 the V8 project 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 os
-
-BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
-VALGRIND_DIR = os.path.join(BASE_DIR, 'third_party', 'valgrind')
-LINUX32_DIR = os.path.join(VALGRIND_DIR, 'linux_x86')
-LINUX64_DIR = os.path.join(VALGRIND_DIR, 'linux_x64')
-
-
-def DoMain(_):
-  """Hook to be called from gyp without starting a separate python
-  interpreter."""
-  return int(os.path.exists(LINUX32_DIR) and os.path.exists(LINUX64_DIR))
-
-
-if __name__ == '__main__':
-  print DoMain([])