Delete Makefile
Delete Makefile

Deprecates `make html` and `make run`
Refs: #97, #186, #200
OndrejPontes/httpbin,mansilladev/httpbin,ashcoding/httpbin,nkhuyu/httpbin,hnq90/httpbin,hnq90/httpbin,Runscope/httpbin,lioonline/httpbin,Jaccorot/httpbin,mansilladev/httpbin,vscarpenter/httpbin,logonmy/httpbin,luhkevin/httpbin,shaunstanislaus/httpbin,Lukasa/httpbin,bradparks/httpbin__http_echo_service_for_testing_http_requests,phouse512/httpbin,mojaray2k/httpbin,kennethreitz/httpbin,nkhuyu/httpbin,pestanko/httpbin,yangruiyou85/httpbin,yangruiyou85/httpbin,phouse512/httpbin,habibmasuro/httpbin,scottydelta/httpbin,gvangool/httpbin,pskrz/httpbin,fangdingjun/httpbin,gvangool/httpbin,krissman/httpbin,yemingm/httpbin,paranoiasystem/httpbin,logonmy/httpbin,marinehero/httpbin,lioonline/httpbin,shaunstanislaus/httpbin,admin-zhx/httpbin,krissman/httpbin,ewdurbin/httpbin,paranoiasystem/httpbin,luosam1123/httpbin,habibmasuro/httpbin,kennethreitz/httpbin,postmanlabs/httpbin,OndrejPontes/httpbin,ewdurbin/httpbin,marinehero/httpbin,Runscope/httpbin,Stackato-Apps/httpbin,fangdingjun/httpbin,admin-zhx/httpbin,mozillazg/bustard-httpbin,luosam1123/httpbin,yemingm/httpbin,bradparks/httpbin__http_echo_service_for_testing_http_requests,ashcoding/httpbin,luhkevin/httpbin,pskrz/httpbin,sigmavirus24/httpbin,SunGuo/httpbin,Lukasa/httpbin,mojaray2k/httpbin,Stackato-Apps/httpbin,Jaccorot/httpbin,postmanlabs/httpbin,mozillazg/bustard-httpbin,SunGuo/httpbin,scottydelta/httpbin,sigmavirus24/httpbin,pestanko/httpbin,vscarpenter/httpbin