Revert "Add one variable to decide if need TTS voice packs"

This reverts commit b52878371b4d29dbba7b0c19c4d34bf57cbd4f5f.

Reason for revert: <Need preload TTS voice packs. If we need this patch, please just phase in the factory branch>

Bug: 140145973
Change-Id: Iacbe0cac6f7d68eac8b2155795e918edd1e73e25
1 file changed