default-suites: Remove octobts tests

Since latest release firmware, we have been unable to start up octobts
correctly. As it's annoying having all those tests failing all the time,
let's disable them in nightly builds until we have a working OctoBTS
setup working again.

Change-Id: I828723193564b3a91aeac0c163c7c8c6b7e4058c
1 file changed