Revert "chore(l10n): Add about:home's document title to l10n (#3156)"
Revert "chore(l10n): Add about:home's document title to l10n (#3156)"

This reverts commit 9697aec876b24863e42040d8d575edbbe18e35c8.

AdamHillier/activity-stream,rlr/activity-streams,sarracini/activity-stream,mozilla/activity-streams,mozilla/activity-stream,JaredKerim-Mozilla/activity-stream,rlr/activity-streams,mozilla/activity-stream,AdamHillier/activity-stream,JaredKerim-Mozilla/activity-stream,AdamHillier/activity-stream,Mardak/activity-stream,JaredKerim-Mozilla/activity-stream,Mardak/activity-stream,sarracini/activity-stream,Mardak/activity-stream,rlr/activity-streams,JaredKerim-Mozilla/activity-stream,sarracini/activity-stream,mozilla/activity-streams,mozilla/activity-stream,rlr/activity-streams,sarracini/activity-stream,Mardak/activity-stream,AdamHillier/activity-stream,mozilla/activity-stream