There's no test script. Full tests can be easily executed inside a local
running agola instance using an agola "direct run".
Single package tests can be executed using a manual go test invocation based on
the kind of package we want to test (since some of them require a running etcd,
a running docker, a running k8s cluster, a gitea binary etc...)
* Delete the command and it's rule in the Makefile
* Don't use it inside gitserver and remove related config option (also from
examples)
* Remove webhook parsing from agolagit gitsource
