Remove Recall.ai sponsorship details from README

Removed sponsorship information for Recall.ai from README.

Author: royshil

README.md

@@ -1,7 +1,3 @@
-## Repo sponsors: [Recall.ai](https://www.recall.ai/product/desktop-recording-sdk?utm_source=github&utm_medium=sponsorship&utm_campaign=royshil-obs-localvocal) - API for desktop recording
-
-If you’re looking for a hosted desktop recording API, consider checking out [Recall.ai](https://www.recall.ai/product/desktop-recording-sdk?utm_source=github&utm_medium=sponsorship&utm_campaign=royshil-obs-localvocal), an API that records Zoom, Google Meet, Microsoft Teams, in-person meetings, and more.
-
 # LocalVocal - Speech AI assistant OBS Plugin
 
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