Revert "cygprofile: Temporarily re-enable legacy orderfile."

This reverts commit e7d3094b7a004d268bd004a31c88b3b64524f0f9.

Reason for revert: Bot ran once, let's go back to the newer orderfile
                   pipeline.

Original change's description:
> cygprofile: Temporarily re-enable legacy orderfile.
> 
> Now that we have memory and performance measurements in the orderfile generation
> pipeline, re-enable the legacy one temporarily to compare its impact vs the
> current system health based one.
> 
> Bug: 956960
> Change-Id: I8a01ce89e58f694ce546c73479333ae8919b627a
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1584285
> Commit-Queue: Egor Pasko <pasko@chromium.org>
> Reviewed-by: Egor Pasko <pasko@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#654395}

TBR=pasko@chromium.org,lizeb@chromium.org,msalama@google.com

Change-Id: I77711f619546a833a433bfd8fc6841537290668f
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: 956960
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1584289
Reviewed-by: Benoit L <lizeb@chromium.org>
Commit-Queue: Benoit L <lizeb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#654458}

• tools/cygprofile/orderfile_generator_backend.py[diff]