#532 Remove _.noop callback for several Chrome API calls

[Anonymous]

Originally created by: MeoMix

I have API calls to:

• chrome.runtime.requestUpdateCheck
• chrome.tabs.highlight

both of which have a mandatory callback, but the callback is not needed.

This is being resolved in: https://code.google.com/p/chromium/issues/detail?id=417564

Go through and remove these references once it becomes stable.