samples/bpf: Remove unmaintained XDP sample utilities #23827

Job	Run time
set-matrix	1s
build for x86_64 with gcc	4m 21s
build for x86_64 with llvm-16	4m 4s
build for aarch64 with gcc	4m 38s
build for s390x with gcc	12m 38s
veristat	2m 14s
test_progs on x86_64 with gcc	4m 49s
test_progs_parallel on x86_64 with gcc	3m 16s
test_progs_no_alu32 on x86_64 with gcc	4m 5s
test_progs_no_alu32_parallel on x86_64 with gcc	3m 0s
test_maps on x86_64 with gcc	3m 7s
test_verifier on x86_64 with gcc	1m 58s
test_progs on x86_64 with llvm-16	5m 4s
test_progs_parallel on x86_64 with llvm-16	2m 55s
test_progs_no_alu32 on x86_64 with llvm-16	3m 26s
test_progs_no_alu32_parallel on x86_64 with llvm-16	2m 33s
test_maps on x86_64 with llvm-16	3m 2s
test_verifier on x86_64 with llvm-16	1m 23s
test_progs on aarch64 with gcc	5m 16s
test_progs_parallel on aarch64 with gcc	3m 13s
test_progs_no_alu32 on aarch64 with gcc	4m 33s
test_progs_no_alu32_parallel on aarch64 with gcc	2m 53s
test_maps on aarch64 with gcc	3m 27s
test_verifier on aarch64 with gcc	1m 49s
test_progs on s390x with gcc	1s
test_progs_no_alu32 on s390x with gcc	15m 50s
test_maps on s390x with gcc	48m 3s
test_verifier on s390x with gcc	6m 36s
	2h 38m 15s

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