Revert "pypy3: use valid pypy3 path in src_install"

This reverts commit b2866c839a63f09e016d6d12f1ee76e71e3d5cb6.

Reason for revert: b/204077219, b/201487405#comment9

Original change's description:
> pypy3: use valid pypy3 path in src_install
>
> Set $PYTHON to a known existing path for pypy3-c instead of a broken
> symlink. The PYTHON env var is used by python_optimize to
> determine the path of the python implementation used to compile all the
> standard libs, and if the path is broken, .pyc files don't get
> generated.
>
> More information about the underlying issue and potential fixes is
> available at http://shortn/_kP8nkDxu58.
>
> BUG=b:201487405,b:187793277
>
> Does this CL fix the root cause of b:201487405? Run a tryjob with the
> reland CL and the fix (this CL).
> TEST=`cros tryjob --remote -g 3198893 -g 3232964 chromiumos-sdk-tryjob'
> passes (YES) - https://ci.chromium.org/b/8832892772655764145 (patchset
> 2), https://ci.chromium.org/b/8832746527699544177 (patchset 3)
>
> Does this CL not break the SDK as-is? Run a tryjob with this CL.
> TEST=`cros tryjob --remote -g 3232964 chromiumos-sdk-tryjob' passes
> (YES) - https://ci.chromium.org/b/8832900189125341057 (patchset 2),
> https://ci.chromium.org/b/8832746507744530785 (patchset 3)
>
> TEST=CQ
>
> Cq-Depend: chromium:3198893
> Change-Id: Ia80c6086293b7f74a78fed8ec5bebc38189ba4d5
> Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/overlays/portage-stable/+/3232964
> Tested-by: Lizzy Presland <zland@google.com>
> Auto-Submit: Lizzy Presland <zland@google.com>
> Commit-Queue: Lizzy Presland <zland@google.com>
> Reviewed-by: Mike Frysinger <vapier@chromium.org>
> Reviewed-by: Chris McDonald <cjmcdonald@chromium.org>

BUG=b:204077219, b:201487405#comment9
TEST=cq

Change-Id: I72b13f2621da32a5c4100f0025d6063c171a66b3
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/overlays/portage-stable/+/3241730
Reviewed-by: Raul E Rangel <rrangel@chromium.org>
Auto-Submit: Lizzy Presland <zland@google.com>
Tested-by: Lizzy Presland <zland@google.com>
Commit-Queue: Lizzy Presland <zland@google.com>
1 file changed