module: zfs: dsl: pool: shim out dsl_early_sync_task_verify()

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes #12844

module/zfs/dsl_pool.c

@@ -664,6 +664,9 @@ dsl_early_sync_task_verify(dsl_pool_t *dp, uint64_t txg)
 
 	return (B_TRUE);
 }
+#else
+#define	dsl_early_sync_task_verify(dp, txg) \
+	((void) sizeof (dp), (void) sizeof (txg), B_TRUE)
 #endif
 
 void