To remove an RBS, the document outlines the following steps:
1. Delete the AAL2 routing case MO in the RXI using the proxy and AAL2 routing case identifier.
2. Delete the UniSAAL TP MOs in the RXI.
3. Delete the AAL5 TP VCC TP MOs in the RXI.
4. Delete the VC MOs in the RXI to remove the VC links.
5. Delete the main .b MO in the RXI to remove the remaining RBS objects.