Switch back to ACTS backend for ACTS tracking codes
This MR is an attempt to understand performance issue reported in: https://its.cern.ch/jira/browse/ATLSWUPGR-228
It technically reverts !66631 (merged)
GitLab service scheduled maintenance on Friday, March 21st 2025 as of 08h00 Geneva time for an estimated period of 1 hour. Further information under OTG0154918.
This MR is an attempt to understand performance issue reported in: https://its.cern.ch/jira/browse/ATLSWUPGR-228
It technically reverts !66631 (merged)