[metacity] Fix build failure from SIGCHLD nexus left overs

[Ray Strode <halfline src gnome org>]

commit 19d85c85667941fec25a65516d84bd7a5c0bb22b
Author: Frederic Peters <fpeters 0d be>
Date:   Sun Nov 29 20:40:12 2009 -0500

    Fix build failure from SIGCHLD nexus left overs
    
    Looks like there are some leftovers in include/util.h:
    
    /**
     * An object which exists purely to attach signals to; this is to receive
     * signals when a child process exits.  The signal is "sigchld" with no detail.
     */
    extern MetaNexus *sigchld_nexus;
    
    Removing those lines fixes the build

 src/include/util.h |    6 ------
 1 files changed, 0 insertions(+), 6 deletions(-)
---
diff --git a/src/include/util.h b/src/include/util.h
index 3798763..ee8c72a 100644
--- a/src/include/util.h
+++ b/src/include/util.h
@@ -131,12 +131,6 @@ GPid meta_show_dialog (const char *type,
 
 #endif /* !WITH_VERBOSE_MODE */
 
-/**
- * An object which exists purely to attach signals to; this is to receive
- * signals when a child process exits.  The signal is "sigchld" with no detail.
- */
-extern MetaNexus *sigchld_nexus;
-
 #endif /* META_UTIL_H */