Revert "feat(metric): add forest version to prometheus (#4535)"

[LesnyRumcajs]

This reverts commit 1103ac7.

Summary of changes

Changes introduced in this pull request:

• the Info metric is not compliant with the default Prometheus/Grafana stack and so we should not use it (unless proven it works fine). See Add Forest version in Prometheus metrics #4533 (comment)

Reference issue to close (if applicable)

Closes

Other information and links

Change checklist

• I have performed a self-review of my own code,
• I have made corresponding changes to the documentation,
• I have added tests that prove my fix is effective or that my feature works (if possible),
• I have made sure the CHANGELOG is up-to-date. All user-facing changes should be reflected in this document.