Don't make Commit#raw_deltas private

app/models/commit.rb

@@ -335,6 +335,10 @@ class Commit
     # end
   end
 
+  def raw_deltas
+    raw.deltas
+  end
+
   def diffs(diff_options = nil)
     Gitlab::Diff::FileCollection::Commit.new(self, diff_options: diff_options)
   end
@@ -385,10 +389,6 @@ class Commit
     changes
   end
 
-  def raw_deltas
-    raw.deltas
-  end
-
   def merged_merge_request?(user)
     !!merged_merge_request(user)
   end