release: remove macos signing script and cloudupload tool

We moved macOS signing to linux, so the macOS signing script is no longer needed.

Release note: none
Epic: none

Author: rail

build/teamcity/internal/cockroach/release/publish/sign_macos_release.sh

@@ -1110,8 +1110,6 @@ GO_TARGETS = [
     "//pkg/cmd/bazci/testfilter:testfilter_test",
     "//pkg/cmd/bazci:bazci",
     "//pkg/cmd/bazci:bazci_lib",
-    "//pkg/cmd/cloudupload:cloudupload",
-    "//pkg/cmd/cloudupload:cloudupload_lib",
     "//pkg/cmd/cmdutil:cmdutil",
     "//pkg/cmd/cmp-protocol/pgconnect:pgconnect",
     "//pkg/cmd/cmp-protocol:cmp-protocol",

pkg/BUILD.bazel

@@ -76,7 +76,6 @@ var buildTargetMapping = map[string]string{
 	"bazel-remote":         bazelRemoteTarget,
 	"buildifier":           "@com_github_bazelbuild_buildtools//buildifier:buildifier",
 	"buildozer":            "@com_github_bazelbuild_buildtools//buildozer:buildozer",
-	"cloudupload":          "//pkg/cmd/cloudupload:cloudupload",
 	"cockroach":            cockroachTarget,
 	"cockroach-sql":        "//pkg/cmd/cockroach-sql:cockroach-sql",
 	"cockroach-short":      "//pkg/cmd/cockroach-short:cockroach-short",