Don't show diffs for lfs pointers.

app/models/lfs_object.rb

@@ -6,8 +6,6 @@ class LfsObject < ActiveRecord::Base
 
   mount_uploader :file, LfsObjectUploader
 
-  MATCH_FROM_POINTER_REGEX = "(?<=sha256:)([0-9a-f]{64})"
-
   def storage_project(project)
     if project && project.forked?
       project.forked_from_project

app/views/projects/diffs/_file.html.haml

@@ -25,7 +25,7 @@
             = "#{diff_file.diff.a_mode} → #{diff_file.diff.b_mode}"
 
       .diff-controls
-        - if blob.text?
+        - if blob.text? && !blob.lfs_pointer?
           = link_to '#', class: 'js-toggle-diff-comments btn btn-sm active has_tooltip', title: "Toggle comments for this file" do
             %i.fa.fa-comments
            
@@ -40,7 +40,7 @@
   .diff-content.diff-wrap-lines
     -# Skipp all non non-supported blobs
     - return unless blob.respond_to?('text?')
-    - if blob.text?
+    - if blob.text? && !blob.lfs_pointer?
       - if diff_view == 'parallel'
         = render "projects/diffs/parallel_view", diff_file: diff_file, project: project, blob: blob, index: i
       - else