fix(dracut-systemd): remove unused argument

The `generator_wait_for_dev` function of the dracut rootfs systemd generator
only uses the first argument. Moreover, RDRETRY is unset at this point.

Author: aafeijoo-suse

modules.d/98dracut-systemd/rootfs-generator.sh

@@ -104,7 +104,7 @@ esac
 GENERATOR_DIR="$1"
 
 if [ "$rootok" = "1" ]; then
-    generator_wait_for_dev "${root#block:}" "$RDRETRY"
+    generator_wait_for_dev "${root#block:}"
     generator_fsck_after_pre_mount "${root#block:}"
     strstr "$(cat /proc/cmdline)" 'root=' || generator_mount_rootfs "${root#block:}" "$(getarg rootfstype=)" "$(getarg rootflags=)"
 fi