tools: remove gyp from tools directory

LICENSE

@@ -1004,37 +1004,6 @@ The externally maintained libraries used by Node.js are:
     --------
   """
 
-- GYP, located at tools/gyp, is licensed as follows:
-  """
-    Copyright (c) 2009 Google Inc. All rights reserved.
-
-    Redistribution and use in source and binary forms, with or without
-    modification, are permitted provided that the following conditions are
-    met:
-
-       * Redistributions of source code must retain the above copyright
-    notice, this list of conditions and the following disclaimer.
-       * Redistributions in binary form must reproduce the above
-    copyright notice, this list of conditions and the following disclaimer
-    in the documentation and/or other materials provided with the
-    distribution.
-       * Neither the name of Google Inc. nor the names of its
-    contributors may be used to endorse or promote products derived from
-    this software without specific prior written permission.
-
-    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-    "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-    A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-    OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-    SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-    LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-    DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-    THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-    (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-    OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-  """
-
 - inspector_protocol, located at tools/inspector_protocol, is licensed as follows:
   """
     // Copyright 2016 The Chromium Authors. All rights reserved.

configure

@@ -46,7 +46,7 @@ original_argv = sys.argv[1:]
 CC = os.environ.get('CC', 'cc' if sys.platform == 'darwin' else 'gcc')
 CXX = os.environ.get('CXX', 'c++' if sys.platform == 'darwin' else 'g++')
 
-sys.path.insert(0, os.path.join('tools', 'gyp', 'pylib'))
+sys.path.insert(0, os.path.join('deps', 'npm', 'node_modules', 'node-gyp', 'gyp', 'pylib'))
 from gyp.common import GetFlavor
 
 # imports in tools/configure.d