Remove presets from karma.conf
Remove presets from karma.conf

seemt o be picked up from .babelrc

vector-im/riot-web,vector-im/riot-web,martindale/vector,vector-im/riot-web,vector-im/riot-web,vector-im/vector-web,vector-im/vector-web,vector-im/vector-web,vector-im/vector-web,vector-im/riot-web,vector-im/riot-web,martindale/vector,vector-im/vector-web