cmd/go: revert "support cgo files in overlays"
This reverts CL 262618 (commit
48be3ed1394d85af5a7e1a6313fa9cab4d1b7cf9).
Reason for revert: breaks longtest builders.
Change-Id: Iec1e236ba793f24394442d04eb846f8a73ab2e68
Reviewed-on: https://go-review.googlesource.com/c/go/+/267037
Trust: Dmitri Shuralyov <dmitshur@golang.org>
Trust: Alberto Donizetti <alb.donizetti@gmail.com>
Run-TryBot: Dmitri Shuralyov <dmitshur@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Alberto Donizetti <alb.donizetti@gmail.com>