Revert hard-coded src.git DEPS file name.

This is breaking the ability to specify an alternate DEPS file, and do
things like sync release tags where DEPS is still from svn and we need
.DEPS.git to do a git checkout.

R=iannucci@chromium.org, szager@chromium.org
BUG=407049

Review URL: https://codereview.chromium.org/511533003

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/depot_tools@291665 0039d316-1c4b-4281-b951-d872f2087c98

gclient.py

@@ -220,10 +220,7 @@ class DependencySettings(GClientKeywords):
     # These are not mutable:
     self._parent = parent
     self._safesync_url = safesync_url
-    if url == CHROMIUM_SRC_URL:
-      self._deps_file = 'DEPS'
-    else:
-      self._deps_file = deps_file
+    self._deps_file = deps_file
     self._url = url
     # 'managed' determines whether or not this dependency is synced/updated by
     # gclient after gclient checks it out initially.  The difference between