gdb: remove an unintended #undef

An #undef seems to have sneaked into gdbsupport/scoped_signal_handler.h.
This causes the HAVE_SIGACTION macro to be cleared unintentionally.
Remove the line.

Approved-By: Tom Tromey <tom@tromey.com>

diff --git a/gdbsupport/scoped_signal_handler.h b/gdbsupport/scoped_signal_handler.h
index d2b5a764d8925c1e0bcd55a851e6cdd3aa3f63c2..6109035c50ad0928b3945e8989fc7ca4d339cd70 100644 (file)
--- a/gdbsupport/scoped_signal_handler.h
+++ b/gdbsupport/scoped_signal_handler.h
@@ -22,8 +22,6 @@
 
 #include <signal.h>
 
-#undef HAVE_SIGACTION
-
 /* RAII class to set a signal handler for a scope, that will take care of
    unsetting the handler when the scope is left.
    This class will try to use sigaction whenever available, following the