[PATCH 2/3] gdbsupport: remove #ifndef REALTIME_LO in signals.cc

[Simon Marchi via Gdb-patches <gdb-patches@sourceware.org>]

REALTIME_LO was only possibly previously defined in config/nm-nto.h,
which is now removed.  So we can remove the #ifndef protecting against a
redefinition of REALTIME_LO in gdbsupport/signals.cc.

gdbsupport/ChangeLog:

	* signals.cc: Remove `#ifndef REALTIME_LO`.

Change-Id: I021b9518ceaa6223bd480ff1e07e9a978b0b241e
---
 gdbsupport/signals.cc | 14 ++++++--------
 1 file changed, 6 insertions(+), 8 deletions(-)

diff --git a/gdbsupport/signals.cc b/gdbsupport/signals.cc
index b9fe9005c6aa..93862bfeae88 100644
--- a/gdbsupport/signals.cc
+++ b/gdbsupport/signals.cc
@@ -31,14 +31,12 @@ struct gdbarch;
    _available_ realtime signal, not the lowest supported; glibc takes
    several for its own use.  */
 
-#ifndef REALTIME_LO
-# if defined(__SIGRTMIN)
-#  define REALTIME_LO __SIGRTMIN
-#  define REALTIME_HI (__SIGRTMAX + 1)
-# elif defined(SIGRTMIN)
-#  define REALTIME_LO SIGRTMIN
-#  define REALTIME_HI (SIGRTMAX + 1)
-# endif
+#if defined(__SIGRTMIN)
+# define REALTIME_LO __SIGRTMIN
+# define REALTIME_HI (__SIGRTMAX + 1)
+#elif defined(SIGRTMIN)
+# define REALTIME_LO SIGRTMIN
+# define REALTIME_HI (SIGRTMAX + 1)
 #endif
 
 /* This table must match in order and size the signals in enum
-- 
2.29.2