i386 info float

[Jim Blandy <jimb at cygnus dot com>]

We were notified yesterday that the FSF had received the copyright
papers for Mark's `info float' command, so it's in the sources now.
It should appear in the next snapshot.  Thanks very much, Mark!

Persons of proper upbringing will be shocked to learn that there are
no less than eight distinct implementations of `info float' for the
x86.  Now, the Sequent machines do have the Weitek FPU, so one could
plausibly argue that they merit their own `info float' command.  But
they don't.  (As far as I can tell.)  So the duplication is completely
gratuitous.

They are as follows:

The one we want to keep:
i387-tdep.c:i387_float_info

Maintained platforms:
go32-nat.c:i386_go32_float_info       (Eli's bailiwick)
i386gnu-nat.c:i386_mach3_float_info   (Mark's bailiwick)
i386b-nat.c:i386_float_info    	      (used on all BSD's; any takers?)
i386v-nat.c:i386_float_info    	      (#if 0'd out)

Unmaintained platforms (as far as I know):
i386m3-nat.c:i386_mach3_float_info    (unmaintained)
i386aix-nat.c:i386_float_info         (unmaintained)
symm-nat.c:i386_float_info            (unmaintained)


I'm going to delete the definition from i386v-nat.c.  As far as I
know, there are no BSD GDB folks participating in this list, so we'll
just have to wait until someone speaks up about them.  So, once Eli and
Mark have taken care of their targets, we're basically done.