Get rid of LASTCHANGE.blink

DEPS

 # This file is used to manage the dependencies of the Chromium src repo. It is
 # used by gclient to determine what version of each dependency to check out, and
 # where.
 #
 # For more information, please refer to the official documentation:
 #   https://sites.google.com/a/chromium.org/dev/developers/how-tos/get-the-code
 #
 # When adding a new dependency, please update the top-level .gitignore file
 # to list the dependency's destination directory.
 #
@@ skipping 820 matching lines @@
     'action': ['python', 'src/tools/clang/scripts/update.py', '--if-needed'],
   },
   {
     # Update LASTCHANGE.
     'name': 'lastchange',
     'pattern': '.',
     'action': ['python', 'src/build/util/lastchange.py',
                '-o', 'src/build/util/LASTCHANGE'],
   },
   {
-    # Update LASTCHANGE.blink.
-    'name': 'lastchange_blink',
-    'pattern': '.',
-    'action': ['python', 'src/build/util/lastchange.py',
-               '--git-hash-only',
-               '-s', 'src/third_party/WebKit',
-               '-o', 'src/build/util/LASTCHANGE.blink'],
-  },
-  {
     # Update skia_commit_hash.h.
     'name': 'lastchange_skia',
     'pattern': '.',
     'action': ['python', 'src/build/util/lastchange.py',
                '-m', 'SKIA_COMMIT_HASH',
                '-s', 'src/third_party/skia',
                '--header', 'src/skia/ext/skia_commit_hash.h'],
   },
   # Pull GN binaries. This needs to be before running GYP below.
   {
@@ skipping 294 matching lines @@
 recursedeps = [
   # buildtools provides clang_format, libc++, and libc++abi
   'src/buildtools',
   # android_tools manages the NDK.
   'src/third_party/android_tools',
   # ANGLE manages DEPS that it also owns the build files for, such as dEQP.
   ("src/third_party/angle", "DEPS.chromium"),
   # SwiftShader manages DEPS that it also owns the build files for, such as Subzero.
   ("src/third_party/swiftshader", "DEPS"),
 ]