Remove counters from Pipeline navigation
* counters are heavy from UI perspective
* duplicates information from tabs below
* shows 0 for less active projects. Jumps from 0 to N constantly.
I think we should render counters only when necessary and only for filters ( tabs on white bg ). Exception: issues, merge requests in top navigation as status of project popularity and action required from maintainers
cc @grzesiek @ayufan @jschatz1
See merge request !4617
6aefd3c321