There were quite a bit of API changes that hadn't yet been applied
to remsim_client.c (which was disabled and hence not compiled for
quite some time).
Change-Id: I0b3733f6851a951ee24ae87aa5db0ee8daa7a841
As both the bankd and the server already are in src/bankd and
src/server, respectively: Let's unify this and have the client
also in its own sub-directory.
Change-Id: I67a3a5941434f09f7099c2cdb19c126cea305a73