Removed some spurious tests from charm/charm_test.go
Removed some spurious tests from charm/charm_test.go

makyo/charm,wwitzel3/juju-charm,wwitzel3/juju-charm,wwitzel3/charm,ericsnowcurrently/juju-charm,wwitzel3/charm,rogpeppe/charm,wwitzel3/charm,wwitzel3/juju-charm,ericsnowcurrently/juju-charm,ericsnowcurrently/juju-charm,makyo/charm,makyo/charm