zfs: main: don't NULL-check infallible safe_malloc()

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes #13229

cmd/zfs/zfs_main.c

@@ -5473,8 +5473,6 @@ parse_fs_perm_set(fs_perm_set_t *fspset, nvlist_t *nvl)
 		data_type_t type = nvpair_type(nvp);
 		fs_perm_t *fsperm = NULL;
 		fs_perm_node_t *node = safe_malloc(sizeof (fs_perm_node_t));
-		if (node == NULL)
-			nomem();
 
 		fsperm = &node->fspn_fsperm;
 

cmd/zfs/zfs_util.h

@@ -31,7 +31,7 @@
 extern "C" {
 #endif
 
-void * safe_malloc(size_t size);
+void *safe_malloc(size_t size);
 void nomem(void);
 extern libzfs_handle_t *g_zfs;