Revert ContextImpl LoadedApk packageInfo caching workaround

Reverts changes made for b/120987987 that are no longer necessary
with changes for b/124363683.

Test: manually built, enabled/disabled FontCursiveMonospaceOverlay

Change-Id: Ied18a412d30514b40cc720d9a1af5c0d2053d795
1 file changed