kmsutils: Do not handle GAP events
kmsutils: Do not handle GAP events

Buffers are already marked with DISCONT flag and do not have the risk
of being unsynced

Change-Id: I908ca9f1754b1c02212907d73a6d9ec788abcc00

ESTOS/kms-core,TribeMedia/kms-core,ESTOS/kms-core,Kurento/kms-core,shelsonjava/kms-core,TribeMedia/kms-core,TribeMedia/kms-core,Kurento/kms-core,shelsonjava/kms-core,Kurento/kms-core,ESTOS/kms-core,shelsonjava/kms-core,ESTOS/kms-core,Kurento/kms-core,TribeMedia/kms-core,shelsonjava/kms-core