Revert of use canonical base URL for projects (https://codereview.chromium.org/271703010/)

Reason for revert:
CQ rejects all chromium projects because of this change.

Original issue's description:
> use canonical base URL for projects
> 
> BUG=372645
> R=iannucci@chromium.org, sergeyberezin@chromium.org
> 
> Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=270460

TBR=iannucci@chromium.org,sergeyberezin@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=372645

Review URL: https://codereview.chromium.org/287063002

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/depot_tools@270803 0039d316-1c4b-4281-b951-d872f2087c98

git_cl.py

@@ -635,17 +635,12 @@ or verify this branch is set up to track another (via the --track argument to
     return True
 
   def GetGitBaseUrlFromConfig(self):
-    """Return the configured base URL from branch.<branchname>.canonical-url.
+    """Return the configured base URL from branch.<branchname>.baseurl.
 
     Returns None if it is not set.
     """
-    branch = self.GetBranch()
-    url = RunGit(['config', 'branch.%s.canonical-url' % branch],
-                 error_ok=True).strip()
-    if not url:
-      url = RunGit(['config', 'branch.%s.base-url' % branch],
-                   error_ok=True).strip()
-    return url
+    return RunGit(['config', 'branch.%s.base-url' % self.GetBranch()],
+                  error_ok=True).strip()
 
   def GetRemoteUrl(self):
     """Return the configured remote URL, e.g. 'git://example.org/foo.git/'.
@@ -1079,13 +1074,6 @@ def LoadCodereviewSettingsFromFile(fileobj):
     RunGit(['config', keyvals['PUSH_URL_CONFIG'],
             keyvals['ORIGIN_URL_CONFIG']])
 
-  if 'CANONICAL_URL' in keyvals:
-    branchref = RunGit(['symbolic-ref', 'HEAD']).strip()
-    branch = ShortBranchName(branchref)
-    RunGit(['config', 'branch.%s.canonical-url' % branch,
-            keyvals['CANONICAL_URL']],
-          error_ok=False)
-
 
 def urlretrieve(source, destination):
   """urllib is broken for SSL connections via a proxy therefore we

tests/git_cl_test.py

@@ -204,7 +204,6 @@ class TestGitCl(TestCase):
     return [
         ((['git', 'config', 'core.editor'],), ''),
     ] + cc_call + private_call + [
-        ((['git', 'config', 'branch.master.canonical-url'],), ''),
         ((['git', 'config', 'branch.master.base-url'],), ''),
         ((['git',
            'config', '--local', '--get-regexp', '^svn-remote\\.'],),