Revert "Disable ParameterRestrictions.ptrace* tests on Android < N."

This reverts commit fc93308f5f94bbac2e0724e6be3d4f7d69de6426.

Reason for revert:

Findit (https://goo.gl/kROfz5) identified CL at revision 644811 as the
culprit for flakes in the build cycles as shown on:
https://analysis.chromium.org/p/chromium/flake-portal/analysis/culprit?key=ag9zfmZpbmRpdC1mb3ItbWVyQwsSDEZsYWtlQ3VscHJpdCIxY2hyb21pdW0vZmM5MzMwOGY1Zjk0YmJhYzJlMDcyNGU2YmUzZDRmN2Q2OWRlNjQyNgw

Sample Failed Build: https://ci.chromium.org/buildbot/chromium.linux/Cast%20Linux/70364

Sample Failed Step: sandbox_linux_unittests

Sample Flaky Test: ParameterRestrictions.ptrace_getregs_allowed

Original change's description:
> Disable ParameterRestrictions.ptrace* tests on Android < N.
> 
> Bug: 934930
> Change-Id: I0c9bae607e06a921c4587fcfb50ebc574c830c7e
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1540281
> Reviewed-by: Jorge Lucangeli Obes <jorgelo@chromium.org>
> Commit-Queue: Robert Sesek <rsesek@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#644811}

Change-Id: I9628666758500dba61d72b4cfa7e2890b9ff798a
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: 934930
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1542905
Cr-Original-Commit-Position: refs/heads/master@{#645207}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: 9a02134a30fe7d672a59d27ed42d9af7c53a4831
1 file changed