build: Only generate bzip2 tarballs
build: Only generate bzip2 tarballs

Don't generate both bz2 and gz tarballs: we only use the former anyway,
and the latter just adds time for distcheck to complete.

The gz tarball will be generated by the remote installation scripts when
publishing the release.

kerrickstaley/clutter-vala,Distrotech/clutter,djdeath/clutter,djdeath/clutter,collects/clutter,spatulasnout/clutter,spatulasnout/clutter,heysion/clutter-clone,nobled/clutter,jigpu/clutter,Distrotech/clutter,GNOME/clutter,jigpu/clutter,nobled/clutter,djdeath/clutter-multithreaded,GNOME/clutter,djdeath/clutter-android,ebassi/clutter,collects/clutter,nobled/clutter,Distrotech/clutter,GNOME/clutter,kerrickstaley/clutter-vala,Distrotech/clutter,djdeath/clutter,djdeath/clutter-multithreaded,spatulasnout/clutter,djdeath/clutter-android,GNOME/clutter,djdeath/clutter-multithreaded,djdeath/clutter,djdeath/clutter-android,Distrotech/clutter,spatulasnout/clutter,djdeath/clutter-android,dlespiau/clutter,kerrickstaley/clutter-vala,jigpu/clutter,heysion/clutter-clone,jigpu/clutter,Distrotech/clutter,jigpu/clutter,djdeath/clutter-android,spatulasnout/clutter,GNOME/clutter,ebassi/clutter,dlespiau/clutter,ebassi/clutter,collects/clutter,heysion/clutter-clone,ebassi/clutter,heysion/clutter-clone,djdeath/clutter,ebassi/clutter,collects/clutter,djdeath/clutter-multithreaded,kerrickstaley/clutter-vala,heysion/clutter-clone,dlespiau/clutter,collects/clutter,djdeath/clutter,jigpu/clutter