remove BisectEnumerable

lib/gitlab/background_migration/migrate_uploads_to_object_storage.rb

@@ -105,7 +105,7 @@ module Gitlab
 
       module Report
         def report(results)
-          success, failures = Gitlab::Utils::BisectEnumerable.bisect(results, &:success?)
+          success, failures = results.partition(&:success?)
 
           Rails.logger.info header(success, failures)
           Rails.logger.warn failures(failures)

lib/gitlab/utils.rb

 module Gitlab
   module Utils
-    include BisectEnumerable
-
     extend self
 
     # Run system command without outputting to stdout.

lib/gitlab/utils/bisect_enumerable.rb

-module Gitlab
-  module Utils
-    module BisectEnumerable
-      extend self
-
-      # Bisect an enumerable by using &block as pivot.
-      # Return two arrays, depending on the result of the pivot.
-      #   [e] -> [[e]: pivot(e) == true, [e]: pivot(e) == false]
-      #
-      # Example: odd, even = bisect((1..10), &:odd?)
-      def bisect(enumerable, &block)
-        return [[], []] unless enumerable.any?
-
-        bisect = enumerable.group_by(&block)
-        [bisect.fetch(true, []), bisect.fetch(false, [])]
-      end
-    end
-  end
-end