Declare elision_available in elision_init under the preprocessor
conditional, to avoid an unused variable warning.

Upstream, this has been obsoleted by other elision-related changes.

diff --git a/nptl/sysdeps/unix/sysv/linux/x86/elision-conf.c b/nptl/sysdeps/unix/sysv/linux/x86/elision-conf.c
index 69b4fa4c66e89bc6..cc5efb811352adf1 100644
--- a/nptl/sysdeps/unix/sysv/linux/x86/elision-conf.c
+++ b/nptl/sysdeps/unix/sysv/linux/x86/elision-conf.c
@@ -66,8 +66,8 @@ elision_init (int argc __attribute__ ((unused)),
 	      char **argv  __attribute__ ((unused)),
 	      char **environ)
 {
-  int elision_available = HAS_CPU_FEATURE (RTM);
 #ifdef ENABLE_LOCK_ELISION
+  int elision_available = HAS_CPU_FEATURE (RTM);
   if (!__libc_enable_secure && elision_available)
     {
       /* RHEL 7 specific change: Check if elision is enabled for the