Revert change r37732. Remove copies of scripts from old location.

deps/dartium.deps/DEPS

 import gclient_utils
 import os
 
 path = gclient_utils.FindGclientRoot(os.getcwd())
 execfile(os.path.join(path, 'dartium.deps', 'DEPS.chromium')) # Include proper Chromium DEPS.
 
 # Now we need to override some settings and add some new ones.
 
 vars.update({
   "chromium_url": "http://src.chromium.org/svn",
   "dartium_base": "http://src.chromium.org",
   "dartium_chromium_branch": "/chrome/branches/dart/dartium/src",
   "dartium_chromium_revision": "291770",
-  # Archived chromium builds closest to r291715.
-  "chromium_base_revision":
-      '{"Windows":"291710", ' +
-      ' "Darwin": "291710", ' +
-      ' "Linux": "291714"}',
+  "chromium_base_revision": "291710",
   "dart_branch": "/branches/bleeding_edge",
   "dartium_webkit_branch": "/blink/branches/dart/dartium",
   "dartium_webkit_revision": "181477",
 
   "co19_rev": "@761",
   "fake_async_rev": "@38614",
 })
 
 def massage_deps(deps):
   for key, value in deps.items():
@@ skipping 61 matching lines @@
 hooks.append({
   # Peg the blink version number in LASTCHANGE.blink to be the upstream
   # webkit_revision number so that chrome remote devtools pulls assets from
   # the right place.
   "name": "lastchange",
   "pattern": ".",
   "action": ["python", "-c",
       "f=open('src/build/util/LASTCHANGE.blink','w'); f.write('LASTCHANGE=" +
       Var('webkit_revision') + "\\n')" ],
 })