Deleted track-level linting from CONTRIBUTING.md
Deleted track-level linting from CONTRIBUTING.md

Moved to separate file in docs repo
See issue #27 there

rpottsoh/x-common,rpottsoh/x-common,kgengler/x-common,Vankog/problem-specifications,exercism/x-common,ErikSchierboom/x-common,jmluy/x-common,jmluy/x-common,petertseng/x-common,Vankog/problem-specifications,jmluy/x-common,kgengler/x-common,exercism/x-common,petertseng/x-common,ErikSchierboom/x-common