bsc: Don't start virtual SMLC in TC_lcs_loc_req_without_smlc
The SMLC is not needed at all in that test. In fact, we want it to not be available. Starting it now within that test, where the BSC Lb link is teared down (f_vty_enable_smlc(false)) may create race conditions where the SMLC ttcn3 code (BSSMAP_LE_Emulation) will try to get the RESET procedure ongoing, which the BSC SCCP stack may reject (SCCP UDTS) due to the SCCP User being unbound during the VTY command above to disable the Lb Link.
