Revert "Updated default visibility for membersjs button"
Revert "Updated default visibility for membersjs button"

This reverts commit bf80ba924ff87eb59597c3f158d1cbfdfc2dd887.

- New sites should have the portal enabled and shown by default when they enable members (behind dev flag currently)

TryGhost/Ghost,bitjson/Ghost,ErisDS/Ghost,e10/Ghost,JohnONolan/Ghost,TryGhost/Ghost,JohnONolan/Ghost,janvt/Ghost,JohnONolan/Ghost,bitjson/Ghost,TryGhost/Ghost,ErisDS/Ghost,ErisDS/Ghost,e10/Ghost,janvt/Ghost