build: set buildid once more

[holiman]

The previous clearing of buildid did fully work, turns out we need to set it in ldflags

The go buildid is the only remaining hurdle for reproducible builds, see #28987 (comment)

This PR changes the go build id application note to say literally none

golang/go#33772 (comment):

This difference is due to the .note.go.buildid section added by the linker. It can be set to something static e.g. -ldflags=-buildid= (empty string) to gain reproducibility.

[holiman]

root@51f7eacb67ee:/go-ethereum# /usr/local/go/bin/go build -ldflags "-buildid=none -X github.com/ethereum/go-ethereum/internal/version.gitCommit=30824faf90bf5d1f5e4a1cf0b50de80f10d16490 -X github.com/ethereum/go-ethereum/internal/version.gitDate=20240821 -extldflags '-Wl,-z,stack-size=0x800000,--strip-all'" -tags urfave_cli_no_docs,ckzg -trimpath -v -o /go-ethereum/build/bin/geth ./cmd/geth/
root@51f7eacb67ee:/go-ethereum# /usr/local/go/bin/go tool buildid ./build/bin/geth  
none
root@51f7eacb67ee:/go-ethereum# /usr/local/go/bin/go build -ldflags "-X github.com/ethereum/go-ethereum/internal/version.gitCommit=30824faf90bf5d1f5e4a1cf0b50de80f10d16490 -X github.com/ethereum/go-ethereum/internal/version.gitDate=20240821 -extldflags '-Wl,-z,stack-size=0x800000,--strip-all'" -tags urfave_cli_no_docs,ckzg -trimpath -v -o /go-ethereum/build/bin/geth ./cmd/geth/
root@51f7eacb67ee:/go-ethereum# /usr/local/go/bin/go tool buildid ./build/bin/geth  
S960XgfR35iiFDtSn4pY/RS3iznJWmgl0qd_gKEYS/a1eh6QOr0GbndRDtt2ue/Yvt8QqtezyVg5hnAyA7M

[fjl]

Maybe we could put some useful information in there?