Drop unused CSS reference from karma.conf.js
Drop unused CSS reference from karma.conf.js

Change-Id: I8847dcc92cb31a06ac6eff924849f8c2131254c8

tvoli/shaka-player,tvoli/shaka-player,shaka-project/shaka-player,shaka-project/shaka-player,shaka-project/shaka-player,tvoli/shaka-player,shaka-project/shaka-player,tvoli/shaka-player