bug 1738 noise in testsuite output

[Doug Evans]

Hi.  I updated my tree and ran the testsuite for {i386,x86_64}-linux
using gcc 4.2.3.

One thing I found was on i386-linux:

Running ../../../src/gdb/testsuite/gdb.base/sigstep.exp ...
KPASS: gdb.base/sigstep.exp: step on breakpoint, to handler;
performing step (PRMS gdb/1738)
[...]

1738 was closed over three years ago, so I'm wondering if we still need this:

proc breakpoint_to_handler { i } {
    [...]
    setup_kfail "i*86-*-*" gdb/1738

and

proc breakpoint_to_handler_entry { i } {
    [...]
    setup_kfail "i*86-*-*" gdb/1738