Delete several unused GYP scripts from build/mac and chrome/tools/build/mac.

chrome/installer/mac/sign_versioned_dir.sh.in

 #!/bin/bash -p
 
 # Copyright (c) 2012 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.
 
 # Using codesign, sign the contents of the versioned directory. Namely, this
 # includes the framework and helper app. After signing, the signatures are
 # verified.
 
@@ skipping 26 matching lines @@
   echo "usage: ${ME} app_path codesign_keychain codesign_id" >& 2
   exit 1
 fi
 
 app_path="${1}"
 codesign_keychain="${2}"
 codesign_id="${3}"
 
 versioned_dir="${app_path}/Contents/Versions/@VERSION@"
 
-# An .app bundle to be signed can be signed directly. Normally, signing a
-# framework bundle requires that each version within be signed individually.
-# http://developer.apple.com/mac/library/technotes/tn2007/tn2206.html#TNTAG13
-# In Chrome's case, the framework bundle is unversioned, so it too can be
-# signed directly. See copy_framework_unversioned.sh.
+# To sign an .app bundle that contains nested code, the nested components
+# themselves must be signed. Each of these components is signed below. Note
+# that unless a framework has multiple versions (which is discouraged), signing
+# the entire framework is equivalent to signing the Current version.
+# https://developer.apple.com/library/content/technotes/tn2206/_index.html#//apple_ref/doc/uid/DTS40007919-CH1-TNTAG13
 
 framework="${versioned_dir}/@MAC_PRODUCT_NAME@ Framework.framework"
 notification_service="${framework}/XPCServices/AlertNotificationService.xpc"
 crashpad_handler="${framework}/Helpers/crashpad_handler"
 helper_app="${versioned_dir}/@MAC_PRODUCT_NAME@ Helper.app"
 app_mode_loader_app="${framework}/Resources/app_mode_loader.app"
 app_mode_loader="${app_mode_loader_app}/Contents/MacOS/app_mode_loader"
 
 requirement_suffix="\
 and (certificate leaf = H\"85cee8254216185620ddc8851c7a9fc4dfe120ef\" or \
@@ skipping 42 matching lines @@
     --options "${enforcement_flags_app}" \
     -r="designated => identifier \"com.google.Chrome.helper\" \
 ${requirement_suffix}"
 
 # Show the signatures and verify everything.
 codesign_display_and_verify "${crashpad_handler}" --deep
 codesign_display_and_verify "${app_mode_loader}" --ignore-resources
 codesign_display_and_verify "${notification_service}" --deep
 codesign_display_and_verify "${framework}" --deep
 codesign_display_and_verify "${helper_app}" --deep