Disable advanced mini-profiler tools in production

I'm not really using this lately, and it _only_ creates vulnerability
surface area when not in use; so, while I'm pretty sure we locked this
down correctly to only admin accounts, I'm disabling it just as good
practice. We can add this back later if we need it again!

config/initializers/rack_mini_profiler.rb

@@ -1,3 +0,0 @@
-Rails.configuration.to_prepare do
-	Rack::MiniProfiler.config.enable_advanced_debugging_tools = true
-end