Revert "secure tunneling codegen" #1702

Job	Run time
byo-crypto	3m 3s
linux-github-actions	10m 31s
linux-compat (manylinux2014-x64)	5m 29s
linux-compat (manylinux2014-x86)	6m 42s
linux-compiler-compat (clang-3)	5m 33s
linux-no-cpu-extensions	5m 54s
linux-compat (al2-x64)	5m 38s
linux-compiler-compat (clang-6)	5m 30s
windows	12m 33s
linux-compat (alpine-3.16-x64)	8m 38s
linux-compiler-compat (clang-8)	5m 18s
linux-compat (alpine-3.16-x86)	10m 20s
windows-app-verifier	14m 25s
linux-compiler-compat (clang-9)	5m 36s
linux-compiler-compat (clang-10)	5m 21s
windows-no-cpu-extensions	13m 36s
linux-compat (alpine-3.16-armv6)	14m 37s
linux-compiler-compat (clang-11)	7m 12s
windows-shared-lib	7m 59s
linux-compiler-compat (gcc-4.8)	6m 12s
linux-compat (alpine-3.16-armv7)	14m 36s
linux-compat (alpine-3.16-arm64)	14m 38s
windows-vs14 (Win32)	13m 31s
linux-compiler-compat (gcc-5)	6m 12s
windows-vs14 (x64)	13m 47s
check-codegen-edits	8s
linux-compiler-compat (gcc-6)	5m 43s
linux-compiler-compat (gcc-7)	5m 34s
check-docs	5m 13s
linux-compiler-compat (gcc-8)	6m 18s
check-submodules	8s
linux-smoke-tests	6m 52s
osx	13m 45s
raspberry (raspbian-bullseye)	14m 38s
	4h 41m 10s

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