Drop doubled errors from integration fixture

The duplicate RepositoryMethodCallRule registration made the
findOneBy()/findBy() field errors appear twice; the fixture had been
updated to expect the doubled output. With the duplicate registration
removed, each error is reported once again.

Co-Authored-By: Claude Code

Author: janedbal

tests/DoctrineIntegration/ORM/data/entityRepositoryDynamicReturn-0.json

@@ -4,16 +4,6 @@
         "line": 94,
         "ignorable": true
     },
-    {
-        "message": "Call to method Doctrine\\ORM\\EntityRepository<PHPStan\\DoctrineIntegration\\ORM\\EntityRepositoryDynamicReturn\\MyEntity>::findOneBy() - entity PHPStan\\DoctrineIntegration\\ORM\\EntityRepositoryDynamicReturn\\MyEntity does not have a field named $blah.",
-        "line": 94,
-        "ignorable": true
-    },
-    {
-        "message": "Call to method Doctrine\\ORM\\EntityRepository<PHPStan\\DoctrineIntegration\\ORM\\EntityRepositoryDynamicReturn\\MyEntity>::findBy() - entity PHPStan\\DoctrineIntegration\\ORM\\EntityRepositoryDynamicReturn\\MyEntity does not have a field named $blah.",
-        "line": 116,
-        "ignorable": true
-    },
     {
         "message": "Call to method Doctrine\\ORM\\EntityRepository<PHPStan\\DoctrineIntegration\\ORM\\EntityRepositoryDynamicReturn\\MyEntity>::findBy() - entity PHPStan\\DoctrineIntegration\\ORM\\EntityRepositoryDynamicReturn\\MyEntity does not have a field named $blah.",
         "line": 116,