supercronic: remove redundant dependency

[jowiho]

The supercronic application doesn't need the go runtime (it only needs go at build time). Removing this unnecessary dependency saves roughly 700 MB of dependency packages from getting installed together with supercronic.

[ajayk]

@jowiho Thanks for your contribution this needs epoch bump for the rebuild epoch: 1 changes to epoch: 2

[jowiho]

Thanks for the help, @ajayk. I've pushed a commit to bump the epoch.