GitLab

This reverts commit e2eb7388.

Reason for revert: Broke test_runner.py to not be able to run without
the --system-log-file parameter being set.

Original change's description:
> [fuchsia] Collect Fuchsia system logs from Chrome-Fuchsia tests.
> 
> The Fuchsia system logs contain more detailed information than the Fuchsia kernel logs.
> 
> Currently only Fuchsia kernel logs are collected.  The kernel logs are:
> - written to the swarming task output log along with the actual test output
> - optionally written to a "system_log" file in the test isolate output
> 
> This CL will:
> - optionally write the Fuchsia system log to a "log_listener_log" in the test isolate output
> 
> The Fuchsia system log will be written if the kernel log is written.
> 
> The Fuchsia system log is written to "log_listener_log".  The name "log_listener_log" was used because the Fuchsia kernel log contents are already saved in "system_log".
> 
> Bug: 1042512
> Change-Id: I900b5dfe9f6587f1901c19612060b979fae4da99
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2130679
> Reviewed-by: Kevin Marshall <kmarshall@chromium.org>
> Commit-Queue: Stephen Roe <steveroe@google.com>
> Cr-Commit-Position: refs/heads/master@{#756118}

TBR=wez@chromium.org,kmarshall@chromium.org,steveroe@google.com

Change-Id: I40d0b3030a86856717d53434ac58d7f85dce6fb0
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: 1042512
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2135686Reviewed-by: Wez <wez@chromium.org>
Commit-Queue: Wez <wez@chromium.org>
Cr-Commit-Position: refs/heads/master@{#756217}