kmsbasertpendpoint: Do not use asteriskh263 for H263
kmsbasertpendpoint: Do not use asteriskh263 for H263

That element does not work properly for RTP transmissions when
H263 is used. We just ignore it during the depayloader selection
process.

Change-Id: I3f16578aa4018680587f86faa3e88b2afe305be3

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