delete postgresql #5402

Job	Run time
cackle	1m 28s
fmt	14s
cargo-deny (advisories)	49s
build (gcc, current)	2m 3s
cargo-deny (bans licenses sources)	49s
build (gcc, current, --check-test-tx-meta)	1m 31s
rust-check-git-rev-deps	21s
build (gcc, next)	1m 37s
build (gcc, next, --check-test-tx-meta)	1m 52s
build (clang, current)	2m 7s
build (clang, current, --check-test-tx-meta)	2m 12s
build (clang, next)	2m 1s
build (clang, next, --check-test-tx-meta)	1m 59s
complete	1s
	19m 4s

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