Don't try to optimize the setup of /etc/localtime, just replace it.

clientside/tmcc/common/localize_image

@@ -134,21 +134,16 @@ localize_image() {
 
     # Check the time zone.
     if [ -e /etc/localtime ]; then
-	# XXX might be a symlink to /usr/share which we cannot resolve
-	if [ -L $MNT/etc/localtime ]; then
-	    rm $MNT/etc/localtime
-	    cp /dev/null $MNT/etc/localtime
-	fi
-	cmp -s /etc/localtime $MNT/etc/localtime
-	if [ $? -ne 0 ]; then
-	    echo "  updating /etc/localtime"
+	# XXX might be a symlink to /usr/share which we cannot resolve to
+	# compare, so just unconditionally replace it.
+	rm -f $MNT/etc/localtime
 
+	echo "  updating /etc/localtime"
 	cp -pf /etc/localtime $MNT/etc/localtime || {
 	    echo "Failed to create /etc/localtime"
 	    return 1
 	}
     fi
-    fi
 
     # Check the NTP configuration.
     if [ -e /etc/ntp.conf ]; then