Revert "Adding config flag for default behavior on Enabling Mode..."

Revert submission 24575694-cherrypick-fix_enable_cellular_on_boot-br8qauzzfha

Reason for revert: Potential culprit.  b/300691942.

Reverted changes: /q/submissionid:24575694-cherrypick-fix_enable_cellular_on_boot-br8qauzzfha

Change-Id: I4bf7fc6412e72b36576831023066a944e5ac9614
1 file changed