Clean up config/routes.rb

  - Removed a bunch of auto-generated comments
  - Removed unnecessary whitespace
  - Converted array of symbols to %i[...]
  - Converted hashrocket to Ruby 1.9 style syntax
  - Changed double quotes to single quotes

Change-Id: Ib23465d1b11b2e0f2afba73b213e917725d6b0a1