environs/ec2: fix Destroy on bucket not found
environs/ec2: fix Destroy on bucket not found

bac/juju,AdamIsrael/juju,davecheney/juju,mjs/juju,alesstimec/juju,axw/juju,mhilton/juju,gabriel-samfira/juju,dimitern/juju,mhilton/juju-juju,alesstimec/juju,bogdanteleaga/juju,rogpeppe/juju,frobware/juju,gabriel-samfira/juju,anastasiamac/juju,dooferlad/juju,mhilton/juju,tsakas/juju,Altoros/juju-vmware,waigani/juju,perrito666/juju,ericsnowcurrently/juju,thomnico/juju,cherylj/juju,bz2/juju,mikemccracken/juju,gabriel-samfira/juju,mjs/juju,macgreagoir/juju,ericsnowcurrently/juju,frankban/juju-tmp,tych0/juju,Altoros/juju-cloudsigma,mikemccracken/juju,dooferlad/juju,cloud-green/juju,makyo/juju,reedobrien/juju,fwereade/juju,tych0/juju,tych0/juju,tasdomas/juju,tsakas/juju,frobware/juju,frankban/juju,bac/juju,macgreagoir/juju,marcoceppi/juju,marcmolla/juju,reedobrien/store,davecheney/juju,bac/juju,reedobrien/juju,howbazaar/juju,howbazaar/juju,howbazaar/juju,mjs/juju,wwitzel3/juju,mhilton/juju-juju,perrito666/juju,alesstimec/juju,dimitern/juju,axw/juju,howbazaar/juju,AdamIsrael/juju,Altoros/juju-vmware,thomnico/juju,mikemccracken/juju,cherylj/juju,anastasiamac/juju,frankban/juju-tmp,anastasiamac/juju,kat-co/juju,cmars/juju,axw/juju,bogdanteleaga/juju,sinzui/juju,tasdomas/juju,perrito666/juju,frankban/juju,dimitern/juju,alesstimec/juju,voidspace/juju,frankban/juju-tmp,alesstimec/juju,reedobrien/juju,sinzui/juju,sinzui/juju,cloud-green/juju,waigani/juju,sinzui/juju,bz2/juju,tasdomas/juju,mhilton/juju,voidspace/juju,davecheney/juju,marcmolla/juju,mjs/juju,mhilton/juju-juju,perrito666/juju,ericsnowcurrently/juju,dooferlad/juju,kat-co/juju,waigani/juju,mjs/juju,Altoros/juju-cloudsigma,wwitzel3/juju,mjs/juju,frankban/juju-tmp,cmars/juju,tsakas/juju,rogpeppe/juju,perrito666/juju,ericsnowcurrently/juju,jrwren/juju,marcoceppi/juju,howbazaar/juju,voidspace/juju,Altoros/juju-cloudsigma,reedobrien/juju,axw/juju,mhilton/juju,kat-co/juju,makyo/juju,marcmolla/juju,jrwren/juju,AdamIsrael/juju,wwitzel3/juju,bz2/juju,Altoros/juju-cloudsigma,dooferlad/juju,cloud-green/juju,marcmolla/juju,jrwren/juju,rogpeppe/juju,wwitzel3/juju,fwereade/juju,ericsnowcurrently/juju,Altoros/juju-vmware,marcoceppi/juju,tsakas/juju,reedobrien/juju,cmars/juju,bz2/juju,bogdanteleaga/juju,AdamIsrael/juju,davecheney/juju,mattyw/juju,frankban/juju,macgreagoir/juju,makyo/juju,bac/juju,axw/juju,marcoceppi/juju,cherylj/juju,mattyw/juju,Altoros/juju-vmware,macgreagoir/juju,mikemccracken/juju,marcmolla/juju,mattyw/juju,cmars/juju,frankban/juju,dimitern/juju,frobware/juju,kat-co/juju,waigani/juju,tasdomas/juju,cherylj/juju,dooferlad/juju,makyo/juju,voidspace/juju,fwereade/juju,gabriel-samfira/juju,kat-co/juju,gabriel-samfira/juju,bac/juju,bz2/juju,cloud-green/juju,dimitern/juju,bogdanteleaga/juju,thomnico/juju,anastasiamac/juju,fwereade/juju,frankban/juju,anastasiamac/juju,mattyw/juju,mikemccracken/juju,mhilton/juju-juju,macgreagoir/juju,tych0/juju,thomnico/juju,mjs/juju