Remove unused `extern crate time`
Remove unused `extern crate time`

tanderegg/gfx,mitchmindtree/gfx-rs,JohnColanduoni/gfx,ColinKinloch/gfx,aepsil0n/gfx-rs,tanderegg/gfx,ColinKinloch/gfx,red75prime/gfx,davll/gfx,bvssvni/gfx-rs,alexcrichton/gfx,sectopod/gfx-rs,tempbottle/gfx,JohnColanduoni/gfx,gfx-rs/gfx-rs,Bastacyclop/gfx