remove testing for node 10 as node 10 is no longer officially supported by node
remove testing for node 10 as node 10 is no longer officially supported by node

not causing a version jump as this is just removing auto test, we are making
no functional changes nor any code changes at this time.

ericblade/quaggaJS,ericblade/quaggaJS,ericblade/quaggaJS,ericblade/quaggaJS