EE: Remove EE overrides as now duplicates of CE

ee/app/models/ee/environment.rb

@@ -36,16 +36,6 @@ module EE
       project.protected_environment_accessible_to?(name, user)
     end
 
-    override :has_terminals?
-    def has_terminals?
-      deployment_platform.present? && available? && last_deployment.present?
-    end
-
-    override :terminals
-    def terminals
-      deployment_platform.terminals(self) if has_terminals?
-    end
-
     def rollout_status
       deployment_platform.rollout_status(self) if has_terminals?
     end