lib/BSSGP_Emulation: fix removal of items in ClientList

Previous the old entries aren't removed. This only had an
impact if two different f_TC_* were using the same imsi.
When the second function tried to remove the Client again from
the ClientList, the BSSGP_Emulation failed.

Change-Id: I71103e8f8c5f18e8ebadc057cd62d85affd7ca8c
1 file changed