Don't finish activity on duplicate resume request

With ActivityLifecycler infrastructure duplicate resume situations
are limited to double-relaunch scenario and there shouldn't be any
incorrect resume requests. This means that there shouldn't be any
reasons to finish activity when trying to resume it.

Bug: 77240441
Test: android.app.activity.ActivityThreadTest
Change-Id: I70a3fcbff72954ff673b2020be3134be367cd823