Bug 1354117 - Update various other customizableui tests for photon, r=adw

There are no more help/quit buttons in the panel that shows up in customize mode,
and there are no more hyphenation quirks in items in the panel, so those tests
have been removed. The remaining tests are updated to test the correct panels.

MozReview-Commit-ID: LiUWejjZC7c

--HG--
rename : browser/components/customizableui/test/browser_photon_customization_context_menus.js => browser/components/customizableui/test/browser_customization_context_menus.js
extra : rebase_source : 49cef6ebeee140aefdb7a90d64b48c0da8179dc1