remove workflow from nightly benchmark

[lxning]

Description

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Please include a summary of the feature or issue being fixed. Please also include relevant motivation and context. List any dependencies that are required for this change.

Remove workflow from benchmark since we already knew there are bugs in workflow.
Fixes #(issue)

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• New feature (non-breaking change which adds functionality)
• This change requires a documentation update

Feature/Issue validation/testing

Please describe the Unit or Integration tests that you ran to verify your changes and relevant result summary. Provide instructions so it can be reproduced.
Please also list any relevant details for your test configuration.

• Test A
  Logs for Test A

• Test B
  Logs for Test B

Checklist:

• Did you have fun?
• Have you added tests that prove your fix is effective or that this feature works?
• Has code been commented, particularly in hard-to-understand areas?
• Have you made corresponding changes to the documentation?

[codecov]

Codecov Report

Merging #2114 (e22c274) into master (5140113) will not change coverage.
The diff coverage is n/a.

❗ Current head e22c274 differs from pull request most recent head 854119d. Consider uploading reports for the commit 854119d to get more accurate results

@@           Coverage Diff           @@
##           master    #2114   +/-   ##
=======================================
  Coverage   53.36%   53.36%           
=======================================
  Files          71       71           
  Lines        3225     3225           
  Branches       56       56           
=======================================
  Hits         1721     1721           
  Misses       1504     1504           

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