Change Details

**Reason**: FastStringSearch was obsoleted by PHP 5.5, and MediaWiki hasn't used it since pre-1.27. Additionally, it's problematic to distribute binaries of it because of licensing issues. This isn't a traditional MediaWiki extension, it's a PHP extension, so I deleted some of the steps as unnecessary. - [x] Archive documentation on `mediawiki.org` ( https://www.mediawiki.org/wiki/FastStringSearch ) - [ ] Remove tests in `integration/config` ( `zuul/layout.yaml` ) - [ ] Empty repository and add a OBSOLETE file. - [ ] Archive the extension's diffusion repository: (https://phabricator.wikimedia.org/diffusion/MFSS/) - [ ] Mark the repository read-only in Gerrit: (mediawiki/php/FastStringSearch) - [ ] Delete the GitHub mirror: https://github.com/wikimedia/php-ffs

**Reason**: FastStringSearch was obsoleted by PHP 5.5, and MediaWiki hasn't used it since pre-1.27. Additionally, it's problematic to distribute binaries of it because of licensing issues. This isn't a traditional MediaWiki extension, it's a PHP extension, so I deleted some of the steps as unnecessary. - [x] Archive documentation on `mediawiki.org` ( https://www.mediawiki.org/wiki/FastStringSearch ) - [x] Remove tests in `integration/config` ( `zuul/layout.yaml` ) - [x] Empty repository and add a OBSOLETE file. - [ ] Archive the extension's diffusion repository: (https://phabricator.wikimedia.org/diffusion/MFSS/) - [x] Mark the repository read-only in Gerrit: (mediawiki/php/FastStringSearch) - [ ] Delete the GitHub mirror: https://github.com/wikimedia/php-ffs

**Reason**: FastStringSearch was obsoleted by PHP 5.5, and MediaWiki hasn't used it since pre-1.27. Additionally, it's problematic to distribute binaries of it because of licensing issues. This isn't a traditional MediaWiki extension, it's a PHP extension, so I deleted some of the steps as unnecessary. - [x] Archive documentation on `mediawiki.org` ( https://www.mediawiki.org/wiki/FastStringSearch ) - [ - [x] Remove tests in `integration/config` ( `zuul/layout.yaml` ) - [ - [x] Empty repository and add a OBSOLETE file. - [ ] Archive the extension's diffusion repository: (https://phabricator.wikimedia.org/diffusion/MFSS/) - [ - [x] Mark the repository read-only in Gerrit: (mediawiki/php/FastStringSearch) - [ ] Delete the GitHub mirror: https://github.com/wikimedia/php-ffs