Remove Linguist from Elasticsearch::LiteBlob

ee/lib/elasticsearch/git/lite_blob.rb

 module Elasticsearch
   module Git
     class LiteBlob
-      include Linguist::BlobHelper
+      include Gitlab::BlobHelper
       include Elasticsearch::Git::EncoderHelper
 
       attr_accessor :id, :name, :path, :size, :mode, :commit_id