android build: Cut vacuous blocks from build config.
android build: Cut vacuous blocks from build config.

These do nothing at all -- effectively, they refer to some global
objects and then invoke no methods on them.  They're detritus from
adding and then removing the use of Crashlytics back in 2017, in
commits e923f9d42 and 456352b82.

vishwesh3/zulip-mobile,vishwesh3/zulip-mobile,vishwesh3/zulip-mobile,vishwesh3/zulip-mobile