Remove compass from drone CI config
Remove compass from drone CI config

Now that we use libsass, no need to install compass
for drone builds.

google/ioweb2015,bestwpw/ioweb2015,GoogleChrome/ioweb2015,GoogleChrome/ioweb2015,google/ioweb2015,BLamy/ioweb2015,Thiruppathi/ioweb2015,bestwpw/ioweb2015,BLamy/ioweb2015,jeffposnick/ioweb2015,bestwpw/ioweb2015,Thiruppathi/ioweb2015,b-cuts/ioweb2015,google/ioweb2015,jeffposnick/ioweb2015,Thiruppathi/ioweb2015,jeffposnick/ioweb2015,b-cuts/ioweb2015,GoogleChrome/ioweb2015,b-cuts/ioweb2015,bestwpw/ioweb2015,GoogleChrome/ioweb2015,jeffposnick/ioweb2015,BLamy/ioweb2015,Thiruppathi/ioweb2015,b-cuts/ioweb2015,BLamy/ioweb2015,google/ioweb2015