Delete documentation about canonical data
Delete documentation about canonical data

This has been improved upon in
https://github.com/exercism/docs/blob/master/contributing-to-language-tracks/improving-consistency-across-tracks.md

tejasbubane/exercism.io,tejasbubane/exercism.io,RaptorRCX/exercism.io,tejasbubane/exercism.io,RaptorRCX/exercism.io,RaptorRCX/exercism.io,RaptorRCX/exercism.io,tejasbubane/exercism.io