Future port c8ddb61
glob_param is never used, so rm

this also changes the constructor.  We don't need to pass more options
than "defaults" (whatever defaults are, ugh. probably another hash of
stupid stuff).
Merge pull request #15289 from zzak/future_port_c8ddb61

Future port c8ddb61 [ci skip]
Fix router visualizer CSS and JS resources