Don't show the MR performance delta for review branches
Currently we show a sparkline on the MR page when Prometheus is enabled. It shows the environments that MR/commit has been deployed to, as well as the difference in performance before and after the most recent commit.
This can be both confusing and relatively unhelpful for the review environments that are deployed. Because they don't see traffic, attempting to determine performance differences due a commit is likely to be noise. This could be fluctuations at idle, or it could be sporadic usage of the environment.
What we should do instead, is leverage our load and performance testing jobs to better and more reliably inform developers of the performance impact.
Where this job is useful however, is the analysis of the impact of the commit on a environment which sees regular use and load: production.
Disable this widget except for the environment it is deployed to when merged.