README: Remove Patreon badge for consistency amongst donation methods

- We don't have a badge for other donation methods - this looked slightly out of place.

README.md

@@ -32,9 +32,7 @@ Good luck!
 ## Donations
 Homebrew is a non-profit project run entirely by unpaid volunteers. We need your funds to pay for software, hardware and hosting around continuous integration and future improvements to the project. Every donation will be spent on making Homebrew better for our users.
 
-Please consider a regular donation through [GitHub Sponsors](https://github.com/sponsors/Homebrew) or [Patreon](https://www.patreon.com/homebrew):
-
-[![Donate with Patreon](https://img.shields.io/badge/patreon-donate-green.svg)](https://www.patreon.com/homebrew)
+Please consider a regular donation through [GitHub Sponsors](https://github.com/sponsors/Homebrew) or [Patreon](https://www.patreon.com/homebrew).
 
 Alternatively, if you'd rather make a one-off payment: