Remove hashsum #18311

Job	Run time
Build the fuzzers	3m 13s
Build and test uufuzz examples	1m 39s
Fuzz (fuzz_seq, false)	1m 9s
Fuzz (fuzz_wc, false)	1m 7s
Fuzz (fuzz_expr, true)	2m 5s
Fuzz (fuzz_sort, false)	1m 10s
Fuzz (fuzz_split, false)	1m 42s
Fuzz (fuzz_tr, false)	1m 28s
Fuzz (fuzz_dirname, true)	2m 4s
Fuzz (fuzz_parse_time, false)	1m 27s
Fuzz (fuzz_printf, true)	2m 17s
Fuzz (fuzz_date, true)	2m 1s
Fuzz (fuzz_env, false)	1m 4s
Fuzz (fuzz_test, true)	2m 13s
Fuzz (fuzz_cksum, false)	1m 6s
Fuzz (fuzz_echo, true)	2m 12s
Fuzz (fuzz_non_utf8_paths, true)	2m 4s
Fuzz (fuzz_seq_parse_number, false)	1m 20s
Fuzz (fuzz_parse_glob, true)	2m 4s
Fuzz (fuzz_parse_size, false)	1m 3s
Fuzz (fuzz_cut, false)	1m 11s
Fuzzing Summary	8s
	35m 47s

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