* core.c, eval.c, exec.c, inftarg.c, remote-adapt.c, remote-eb.c,

* core.c, eval.c, exec.c, inftarg.c, remote-adapt.c, remote-eb.c,
remote-hms.c, remote-mm.c, remote-nindy.c, remote-vx.c, remote.c,
target.c, target.h, valarith.c, valops.c, value.h, xcoffexec.c:
Remove to_call_function and target_call_function, since it
always calls the same thing (call_function_by_hand).