Remove obsolete workflows (#56172)

Summary:
Pull Request resolved: #56172

Changelog: [Internal]

Removes obsolete workflows which were testing Hermes V1 integration. Since Hermes V1 is the default now, those are no longer needed.

Reviewed By: cortinico

Differential Revision: D97464853

fbshipit-source-id: df3394548e6e1b3cf854674b2371cf31be935c81

Author: j-piasecki