Conditional validations no longer accept strings for if/unless (#3124)

app/controllers/remote_follow_controller.rb

@@ -4,7 +4,7 @@ class RemoteFollowController < ApplicationController
   layout 'public'
 
   before_action :set_account
-  before_action :gone, if: -> { @account.suspended? }
+  before_action :gone, if: :suspended_account?
 
   def new
     @remote_follow = RemoteFollow.new(session_params)
@@ -34,4 +34,8 @@ class RemoteFollowController < ApplicationController
   def set_account
     @account = Account.find_local!(params[:account_username])
   end
+
+  def suspended_account?
+    @account.suspended?
+  end
 end