1 files changed, 1 insertions, 20 deletions
diff --git a/app/services/files/update_service.rb b/app/services/files/update_service.rb
index bcca1386bed..1902d1cea72 100644
--- a/app/services/files/update_service.rb
+++ b/app/services/files/update_service.rb
@@ -1,13 +1,5 @@
 module Files
   class UpdateService < Files::BaseService
-    FileChangedError = Class.new(StandardError)
-
-    def initialize(*args)
-      super
-
-      @last_commit_sha = params[:last_commit_sha]
-    end
-
     def create_commit!
       repository.update_file(current_user, @file_path, @file_content,
                              message: @commit_message,
@@ -21,21 +13,10 @@ module Files
 
     private
 
-    def file_has_changed?
-      return false unless @last_commit_sha && last_commit
-
-      @last_commit_sha != last_commit.sha
-    end
-
-    def last_commit
-      @last_commit ||= Gitlab::Git::Commit
-        .last_for_path(@start_project.repository, @start_branch, @file_path)
-    end
-
     def validate!
       super
 
-      if file_has_changed?
+      if file_has_changed?(@file_path, @last_commit_sha)
         raise FileChangedError, "You are attempting to update a file that has changed since you started editing it."
       end
     end