Remove sponsors

doc/sponsors.md

@@ -1,14 +0,0 @@
-## Sponsors
-
-`hexyl` development is sponsored by many individuals and companies. Thank you very much!
-
-Please note, that being sponsored does not affect the individuality of the `hexyl`
-project or affect the maintainers' actions in any way.
-We remain impartial and continue to assess pull requests solely on merit - the
-features added, bugs solved, and effect on the overall complexity of the code.
-No issue will have a different priority based on sponsorship status of the
-reporter.
-
-Contributions from anybody are most welcomed.
-
-If you want to see our biggest sponsors, check the top of [`README.md`](../README.md#sponsors).