Revert "Merge pull request #2116 from LessonPlanet/disable-name-edit-for-sso"

This reverts commit 91aa21671a, reversing
changes made to f19596af0d.

lib/guardian/user_guardian.rb

@@ -19,13 +19,6 @@ module UserGuardian
     can_edit?(user)
   end
 
-  def can_edit_name?(user)
-    return false if not(SiteSetting.enable_names?)
-    return false if (SiteSetting.sso_overrides_name? && SiteSetting.enable_sso?)
-    return true if is_staff?
-    can_edit?(user)
-  end
-
   def can_block_user?(user)
     user && is_staff? && not(user.staff?)
   end
@@ -44,4 +37,4 @@ module UserGuardian
     end
   end
 
-end
+end