Revert "cmd/compile,runtime: allocate defer records on the stack"

Revert "cmd/compile,runtime: allocate defer records on the stack"

This reverts commit fff4f599fe1c21e411a99de5c9b3777d06ce0ce6.

Reason for revert: Seems to still have issues around GC.

Fixes #32452

Change-Id: Ibe7af629f9ad6a3d5312acd7b066123f484da7f0
Reviewed-on: https://go-review.googlesource.com/c/go/+/180761
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>