remove obsolete shields

Signed-off-by: Jakub Chodorowicz <[email protected]>

README.md

@@ -4,8 +4,6 @@
 [![npm](https://img.shields.io/npm/v/ts-debounce.svg)](https://www.npmjs.com/package/ts-debounce)
 [![npm bundle size (minified + gzip)](https://img.shields.io/bundlephobia/minzip/ts-debounce.svg)](https://www.npmjs.com/package/ts-debounce)
 [![npm type definitions](https://img.shields.io/npm/types/ts-debounce.svg)](https://www.npmjs.com/package/ts-debounce)
-[![David](https://img.shields.io/david/chodorowicz/ts-debounce.svg)](https://david-dm.org/chodorowicz/ts-debounce)
-[![David](https://img.shields.io/david/peer/chodorowicz/ts-debounce.svg)](https://david-dm.org/chodorowicz/ts-debounce)
 
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