[secp256k1] Remove old `libsecp256k1_fail_on_bad_count` features #10639

Job	Run time
check	7m 7s
test (token/cli, token/program, token/program-2022, associated-token-account/program, instruction...	19m 6s
cargo-test-sbf (token/program)	12m 41s
test (single-pool/cli, single-pool/program)	18m 51s
cargo-test-sbf (instruction-padding/program, token/program-2022, token/program-2022-test)	16m 5s
test (token-upgrade/cli, token-upgrade/program)	14m 10s
cargo-test-sbf (associated-token-account/program, associated-token-account/program-test)	9m 15s
cargo-test-sbf (token-upgrade/program)	8m 57s
cargo-test-sbf (feature-proposal/program)	9m 40s
cargo-test-sbf (governance/addin-mock/program, governance/program)	17m 31s
cargo-test-sbf (memo/program)	10m 12s
cargo-test-sbf (name-service/program)	7m 31s
cargo-test-sbf (stake-pool/program)	14m 12s
cargo-test-sbf (single-pool/program)	9m 4s
	2h 54m 22s

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