kmssdpagent: Fix memory leak
kmssdpagent: Fix memory leak

Change-Id: I27c90b9be76d1192b5e1c22e37d67cd40c7482c5

ESTOS/kms-core,Kurento/kms-core,ESTOS/kms-core,ESTOS/kms-core,Kurento/kms-core,Kurento/kms-core,ESTOS/kms-core,Kurento/kms-core