Remove mocha dep.
Remove mocha dep.

kartotherian/kartotherian,nyurik/kartotherian,jaredbrookswhite/tilelive-vector,nyurik/tilelive-vector,kartotherian/kartotherian,nyurik/kartotherian,mapbox/tilelive-vector,nyurik/kartotherian,kartotherian/kartotherian,nyurik/kartotherian,kartotherian/kartotherian