bnd: Removed line from embedded-repo which was incorrect and ignored

This has been this way since 2.1.0.REL so I can only assume no one has
missed this jar in the embedded-repo. Therefore it is safe to delete
this line. Furthermore, aQute.library.bndrepo is not even built in the
bnd repo.

Signed-off-by: BJ Hargrave <bj@bjhargrave.com>
repo wrapper test: Ignore test generated folder

Signed-off-by: BJ Hargrave <bj@bjhargrave.com>
gradle plugin: Build in a separate project

The plugin is groovy source compiled by gradle.

Signed-off-by: BJ Hargrave <bj@bjhargrave.com>