* [iOS] Add ability to enable Brave admin policies on iOS
This change also adds the an example of handling the BraveWalletDisabled policy
* fixed code checks
* update property name; bump to cr139 min; other review feedback
* remove patch, update override
* remove unused DEPS file
* update wallet policy unit test since ios now runs component unit tests
* re-add android buildflag check to brave_wallet IsDisabledByPolicy
Kyle Hickinson
f4b1d75f83