update current sponsors

Author: mrlubos

README.md

@@ -82,12 +82,6 @@ Sponsors
 
 If you or your company use the OpenAPI Typescript Codegen, please consider supporting me. By sponsoring I can free up time to give this project some love! Details can be found here: https://github.com/sponsors/ferdikoomen
 
-If you're from an enterprise looking for a fully managed SDK generation, please consider our sponsor:
-
-<a href="https://speakeasyapi.dev/?utm_source=ferdi+repo&utm_medium=github+sponsorship">
-    <img alt="speakeasy" src="https://storage.googleapis.com/speakeasy-design-assets/ferdi-sponsorship.png" width="640"/>
-</a>
-
 [npm-url]: https://npmjs.org/package/openapi-typescript-codegen
 [npm-image]: https://img.shields.io/npm/v/openapi-typescript-codegen.svg
 [license-url]: LICENSE