Satisfy Rubocop

app/models/commit_range.rb

@@ -93,7 +93,7 @@ class CommitRange
   def to_reference(from_project = nil)
     if cross_project_reference?(from_project)
-      reference = project.to_reference + self.class.reference_prefix + self.id
+      project.to_reference + self.class.reference_prefix + self.id
     else
       self.id
     end

spec/lib/gitlab/markdown/commit_reference_filter_spec.rb

@@ -152,7 +152,7 @@ module Gitlab::Markdown
       end
       it 'ignores invalid commit IDs on the referenced project' do
-        exp = act = "Committed #{invalidate_reference(reference)}"
+        act = "Committed #{invalidate_reference(reference)}"
         expect(reference_filter(act).to_html).to match(/<a.+>#{Regexp.escape(invalidate_reference(reference))}<\/a>/)
       end

spec/lib/gitlab/markdown/snippet_reference_filter_spec.rb

@@ -134,7 +134,7 @@ module Gitlab::Markdown
       end
       it 'ignores invalid snippet IDs on the referenced project' do
-        exp = act = "See #{invalidate_reference(reference)}"
+        act = "See #{invalidate_reference(reference)}"
         expect(reference_filter(act).to_html).to match(/<a.+>#{Regexp.escape(invalidate_reference(reference))}<\/a>/)
       end