Revert "Cache the layout result if the font feature is specified"

Revert submission 25211873-font_feature_cache

Reason for revert: accessing feature flag in native causes the peformance regression.

Reverted changes: /q/submissionid:25211873-font_feature_cache

Change-Id: I9f9b144196e37d0da815886a3126f99477e88675
17 files changed