Revert "history for files follows after rename"

This reverts commit a5473561.
Because grit does not respect offset setting when follow: true which
cause invalid commit history for file

app/models/repository.rb

@@ -39,7 +39,6 @@ class Repository
       path: path,
       limit: limit,
       offset: offset,
-      follow: path.present?,
     )
     commits = Commit.decorate(commits) if commits.present?
     commits