Remove obsolete composer install arguments in ddev config hook

.ddev/config.yaml

@@ -17,7 +17,7 @@ hooks:
   - exec: ./vendor/bin/typo3cms database:updateschema
   post-start:
   - exec: cp private/typo3conf/AdditionalConfiguration.ddev.php private/typo3conf/AdditionalConfiguration.php
-  - exec: composer install --ignore-platform-reqs -d /var/www/html
+  - exec: composer install
   - exec: ./vendor/bin/typo3cms install:generatepackagestates
   - exec: ./vendor/bin/typo3cms install:extensionsetupifpossible
 webimage_extra_packages: [php7.4-ldap]