creates the update_file method in repository.rb and applies changes accordingly

app/models/repository.rb

@@ -731,7 +731,6 @@ class Repository
     end
   end
 
-  # previous_path, message, update
   def update_file(user, path, content, branch, options={})
     commit_with_hooks(user, branch) do |ref|
       committer = user_to_committer(user)

app/services/files/update_service.rb

@@ -3,7 +3,6 @@ require_relative "base_service"
 module Files
   class UpdateService < Files::BaseService
     def commit
-
       repository.update_file(current_user, @file_path, @file_content,
                              @target_branch, previous_path: @previous_path,
                              message: @commit_message, update: true)