hide away IP pool things in the UI if not enabled

app/models/queued_message.rb

@@ -64,7 +64,7 @@ class QueuedMessage < ApplicationRecord
   end
 
   def allocate_ip_address
-    if Postal.config.general.use_ip_pools && self.message && pool = self.server.ip_pool_for_message(self.message)
+    if Postal.ip_pools? && self.message && pool = self.server.ip_pool_for_message(self.message)
       self.ip_address = pool.ip_addresses.order("RAND()").first
     end
   end