fix: updating the ant-component-mapper README.md to reflect migration to npm

Author: Jakub007d

packages/ant-component-mapper/README.md

@@ -34,10 +34,6 @@ You need to add React Form Renderer
 $ npm install @data-driven-forms/react-form-renderer -S
 ```
 
-```console
-$ yarn add @data-driven-forms/react-form-renderer
-```
-
 Optionally you can install one of provided mappers:
 
 #### [ANT mapper](https://www.npmjs.com/package/@data-driven-forms/ant-component-mapper)
@@ -46,10 +42,6 @@ Optionally you can install one of provided mappers:
 $ npm install @data-driven-forms/ant-component-mapper -S
 ```
 
-```console
-$ yarn add @data-driven-forms/ant-component-mapper
-```
-
 
 ### Usage