bpf_map_offload_delete_elem  900 include/linux/bpf.h int bpf_map_offload_delete_elem(struct bpf_map *map, void *key);
bpf_map_offload_delete_elem 1015 kernel/bpf/syscall.c 		err = bpf_map_offload_delete_elem(map, key);