stop padding new append vecs to page size #2483

Job	Run time
check	0s
test	0s
cargo-test-sbf (token/program)	16m 55s
cargo-test-sbf (instruction-padding/program, token/program-2022, token/program-2022-test)	36m 48s
cargo-test-sbf (associated-token-account/program, associated-token-account/program-test)	19m 50s
cargo-test-sbf (token-upgrade/program)	18m 18s
cargo-test-sbf (feature-proposal/program)	13m 25s
cargo-test-sbf (governance/addin-mock/program, governance/program)	22m 2s
cargo-test-sbf (memo/program)	14m 14s
cargo-test-sbf (name-service/program)	15m 28s
cargo-test-sbf (stake-pool/program)	19m 16s
cargo-test-sbf (single-pool/program)	18m 4s
	3h 14m 20s

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