Get rid of no longer needed target_usernames warning log

app/controllers/posts_controller.rb

@@ -777,10 +777,6 @@ class PostsController < ApplicationController
       result[:target_group_names] = groups.join(",")
     end
 
-    if (recipients.blank? || result[:target_usernames].blank?) && params[:archetype] == Archetype.private_message
-      Rails.logger.warn("Missing recipients for PM! result: #{result.inspect} | params: #{params.inspect}")
-    end
-
     result.permit!
     result.to_h
   end

lib/topic_creator.rb

@@ -171,8 +171,6 @@ class TopicCreator
     topic.subtype = TopicSubtype.user_to_user unless topic.subtype
 
     unless @opts[:target_usernames].present? || @opts[:target_emails].present? || @opts[:target_group_names].present?
-      Rails.logger.warn("Topic PM cannot be created without recipients! opts: #{@opts.inspect}")
-
       rollback_with!(topic, :no_user_selected)
     end