README.md: Remove OpenCollective as no funds are needed nor given

README.md

@@ -1,5 +1,4 @@
 # ParseCsv
-[![Financial Contributors on Open Collective](https://opencollective.com/parsecsv/all/badge.svg?label=financial+contributors)](https://opencollective.com/parsecsv)
 ![PHPUnit](https://github.com/parsecsv/parsecsv-for-php/actions/workflows/phpunit.yml/badge.svg)
 
 ParseCsv is an easy-to-use PHP class that reads and writes CSV data properly. It
@@ -195,30 +194,6 @@ This project exists thanks to all the people who contribute.
 Please find a complete list on the project's [contributors][] page.
 
 [contributors]: https://github.com/parsecsv/parsecsv-for-php/graphs/contributors
-<a href="https://github.com/parsecsv/parsecsv-for-php/graphs/contributors"><img src="https://opencollective.com/parsecsv/contributors.svg?width=890&button=false" /></a>
-
-### Financial Contributors
-
-Become a financial contributor and help us sustain our community. [[Contribute](https://opencollective.com/parsecsv/contribute)]
-
-#### Individuals
-
-<a href="https://opencollective.com/parsecsv"><img src="https://opencollective.com/parsecsv/individuals.svg?width=890"></a>
-
-#### Organizations
-
-Support this project with your organization. Your logo will show up here with a link to your website. [[Contribute](https://opencollective.com/parsecsv/contribute)]
-
-<a href="https://opencollective.com/parsecsv/organization/0/website"><img src="https://opencollective.com/parsecsv/organization/0/avatar.svg"></a>
-<a href="https://opencollective.com/parsecsv/organization/1/website"><img src="https://opencollective.com/parsecsv/organization/1/avatar.svg"></a>
-<a href="https://opencollective.com/parsecsv/organization/2/website"><img src="https://opencollective.com/parsecsv/organization/2/avatar.svg"></a>
-<a href="https://opencollective.com/parsecsv/organization/3/website"><img src="https://opencollective.com/parsecsv/organization/3/avatar.svg"></a>
-<a href="https://opencollective.com/parsecsv/organization/4/website"><img src="https://opencollective.com/parsecsv/organization/4/avatar.svg"></a>
-<a href="https://opencollective.com/parsecsv/organization/5/website"><img src="https://opencollective.com/parsecsv/organization/5/avatar.svg"></a>
-<a href="https://opencollective.com/parsecsv/organization/6/website"><img src="https://opencollective.com/parsecsv/organization/6/avatar.svg"></a>
-<a href="https://opencollective.com/parsecsv/organization/7/website"><img src="https://opencollective.com/parsecsv/organization/7/avatar.svg"></a>
-<a href="https://opencollective.com/parsecsv/organization/8/website"><img src="https://opencollective.com/parsecsv/organization/8/avatar.svg"></a>
-<a href="https://opencollective.com/parsecsv/organization/9/website"><img src="https://opencollective.com/parsecsv/organization/9/avatar.svg"></a>
 
 ## License