Fix gclient.py so that save_pinned_deps works.

Chromium OS continuous builds are failing because of the following error.

Traceback (most recent call last):
  File "/b/depot_tools/gclient.py", line 1212, in <module>
    sys.exit(Main(sys.argv[1:]))
  File "/b/depot_tools/gclient.py", line 1202, in Main
    return command(parser, argv[1:])
  File "/b/depot_tools/gclient.py", line 1122, in CMDrevinfo
    client.PrintRevInfo()
  File "/b/depot_tools/gclient.py", line 776, in PrintRevInfo
    url = entries.pop(name)
KeyError: 'chromiumos'

This change will fix the error.

TEST=none
BUG=none
Review URL: http://codereview.chromium.org/2892007

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/depot_tools@52180 0039d316-1c4b-4281-b951-d872f2087c98

gclient.py

@@ -767,10 +767,6 @@ solutions = [
         url = deps[d].GetUrl(d, sub_deps_base_url, self.root_dir(), sub_deps)
         entries[d] = GetURLAndRev(d, url)
 
-    # Build the snapshot configuration string
-    if self._options.snapshot:
-      url = entries.pop(name)
-
     # Build the snapshot configuration string
     if self._options.snapshot:
       url = entries.pop(name)