Resolve #3434135 "D11 ready"

Closes #3434135

composer.json

@@ -9,8 +9,5 @@
   "support": {
     "issues": "https://www.drupal.org/project/issues/recreate_block_content",
     "source": "http://cgit.drupalcode.org/recreate_block_content"
-  },
-  "require": {
-    "drupal/core": "^8 || ^9"
   }
 }