Remove unnecessary test cases

Author: sayuprc

tests/PHPStan/Analyser/AnalyserIntegrationTest.php

@@ -1524,12 +1524,6 @@ public function testBug13310(): void
 		$this->assertNoErrors($errors);
 	}
 
-	public function testBug13392(): void
-	{
-		$errors = $this->runAnalyse(__DIR__ . '/nsrt/bug-13392.php');
-		$this->assertNoErrors($errors);
-	}
-
 	/**
 	 * @param string[]|null $allAnalysedFiles
 	 * @return Error[]