bbctl: remove set/get_training_ms
bbctl: remove set/get_training_ms

These are deprecated. set/get_training already sets the training
sequence length in ms.

Signed-off-by: Jeppe Ledet-Pedersen <15dc315eb688d5391231b93ed828e3333b4726fa@satlab.org>

satlab/bbctl,aausat/bbctl,satlab/bbctl,aausat/bbctl,satlab/bbctl,satlab/bbctl