xselinux: warning fix

../Xext/xselinux_ext.c: In function ‘SELinuxExtensionInit’:
../Xext/xselinux_ext.c:692:21: warning: variable ‘extEntry’ set but not used [-Wunused-but-set-variable]

Signed-off-by: Adam Jackson <ajax@redhat.com>
1 job for selinux-warning in 3 minutes and 15 seconds (queued for 2 minutes)
Status Name Job ID Coverage
  Test
passed job #22993

00:03:15