Revert of PPC/s390: [sysroot installer] Disable for host arch PPC/s390 (patchset #3 id:40001 of https://codereview.chromium.org/2368943005/ )

Reason for revert:
This causes failures in gclient runhooks on 32 bit machines:

https://build.chromium.org/p/chromium.win/builders/Win7%20%2832%29%20Tests/builds/10626

Log snippet:

running 'E:\b\depot_tools\python276_bin\python.exe src/build/linux/sysroot_scripts/install-sysroot.py
Unrecognized host arch: x86

Original issue's description:
> PPC/s390: [sysroot installer] Disable for host arch PPC/s390
>
> Since PPC/s390 doesn't have the sysroot files available
> on google storage, disabling it so that the script doesn't
> cause gclient sync to fail when run on PPC/s390.
>
> R=agrieve@chromium.org
>
> BUG=
> LOG=N
>
> Committed: https://crrev.com/5e5689bba0a51bad28c08bf3a3820da57a185c3b
> Cr-Commit-Position: refs/heads/master@{#421722}

TBR=agrieve@chromium.org,bjaideep@ca.ibm.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=

Review-Url: https://codereview.chromium.org/2376253002
Cr-Commit-Position: refs/heads/master@{#421735}


CrOS-Libchrome-Original-Commit: 9cc67cbe3ea5b54c3fc8f6793e947150182f3c2b
1 file changed
tree: 63af0e9f668cbf3884753e9c50be3ab547ffa406
  1. base/
  2. build/
  3. components/
  4. dbus/
  5. device/
  6. ipc/
  7. mojo/
  8. testing/
  9. third_party/
  10. ui/