Deprecating FB Login Support on Android Webviews

[brendonwm]

Message received from Facebook:
To prevent a disrupted user experience, please ensure you are using the SDK, have updated to version 8.2+, and remove any overrides in Login Behavior during login (i.e., using LoginBehavior.WEB_VIEW_ONLY).
If your app is using version 8.2+ of the SDK, we utilize several methods to authenticate the user without a web view -- including options like asking the user to complete the login in the Chrome browser (Chrome Custom Tabs) or Facebook Android app (a.k.a. Android App Switch). In addition to being a more secure option, these alternative authentication methods also improve the user experience and increase conversion rates, as the user will no longer need to manually enter their password to log in.

As a result we get the error shown in the attached:
Log in Disabled:
For your account security logging into Facebook from an embedded browser is disabled. You may be able to continue by updating the app you are logging in from and trying again.

[brendonwm]

#1852