test-hook.t: remove prelistkeys.forbid hook before moving on
An upcoming patch will change the order of operations and perform a listkeys
before a changegroup fetch. This will cause a few tests to print out the wrong
error message.
bookmarks.updatefromremote: rename local rb to remotemarks
This local will become a parameter in an upcoming patch, so give it a more
descriptive name. The name stays similar to the existing localmarks.