Remove Tidelift

.github/FUNDING.yml

@@ -1 +0,0 @@
-tidelift: "go/github.com/DarthSim/imgproxy"

README.md

@@ -94,4 +94,4 @@ See [LICENSE](https://github.com/imgproxy/imgproxy/blob/master/LICENSE) for the
 
 ## Security Contact
 
-To report a security vulnerability, please use the [Tidelift security contact](https://tidelift.com/security). Tidelift will coordinate the fix and disclosure.
+To report a security vulnerability, please contact us at security@imgproxy.net. We will coordinate the fix and disclosure.