Remove dead code.

GHC >= 7.4 is needed to bootstrap.

Signed-off-by: Austin Seipp <aseipp@pobox.com>
Revert "Add support for external repositories to sync-all"

This reverts commit 2e41f2fa91c833a4420ac273254e49468044bc4b.

Signed-off-by: Austin Seipp <aseipp@pobox.com>