Revert "Merge pull request #18750 from jmcanterafonseca/oauth_facebook"

This reverts commit 800800b332d03580f4f8748e5046d71f00a3c7d9, reversing
changes made to 7b6b5a4ec6e45fc475105d6a288d77cbb2f17bc2.
Bug 1000981 - [NFC] NfcManager handleNdefMessage tests, NfcUtils tests moved to separate file
Bug 1005951 - Follow-up bug 1001370 webapp-shared.js in line 167 is broken
Bug 1005954 - Images are not loaded in merge list
Merge pull request #18881 from crdlc/bug-1004929

Bug 1004929 - Follow up bug 1003752 - Gaia integration test failures on TBPL r=kgrandon
Merge pull request #18917 from KevinGrandon/bug_1005715_home2_missing_animation_frames

Bug 1005715 - [Home2] Missing frames during pinch-to-zoom
Bug 1005648 - Apps launched by system message don't have screenshots when swiping from the edge.
Bug 1005939 - Border radius is displayed before images are loaded in merge list
Bug 997005 - BookmarksDatabase does not properly bind context to handleEvent r=crdlc
Revert "Merge pull request #18927 from rnowm/1005802"

This reverts commit 7cceb7de02a72b8ffecbb0844caf5cac17e0b66b, reversing
changes made to 1e42ad6f307f69ad269dd5baba935cd7fc82b703.
Merge pull request #18916 from KevinGrandon/bug_997005_shared_bookmarks_database_context

Bug 997005 - BookmarksDatabase does not properly bind context to handleEvent
Merge pull request #18706 from KevinGrandon/bug_1001625_haida_build_flag

Bug 1001625 - Create a unified build flag to enable all haida features and preferences
Bug 1005417 - Fix bottom space below system dialogs in Simulator. r=alive
Merge pull request #18870 from nullaus/bug1004239

bug 1004239 -- Filter out all titles that contain app:// protocol and re...
Bug 970148 - Support for simple pairing record. r=alive
Merge pull request #18900 from tauzen/Bug1000981

Bug 1000981 - [NFC] NfcManager handleNdefMessage tests, NfcUtils tests moved to separate file, r=alive
Merge pull request #18911 from KevinGrandon/bug_1005330_shared_downloads_jshint

Bug 1005330 - JSHint fixes for shared/js/download/ r=aus
Bug 1003228 - Remove some graphics options from the developer menu as they are not needed any more. r=janx
Bug 1003228 - Remove the toggle button for APZ from the sleep menu. r=janx
Bug 1003228 - Remove redundant force-enabling of APZ in developer builds. r=janx