Remove old code

Author: ssigwart

src/Reflection/SignatureMap/FunctionSignatureMapProvider.php

@@ -9,7 +9,6 @@
 use PHPStan\Reflection\InitializerExprTypeResolver;
 use PHPStan\ShouldNotHappenException;
 use PHPStan\Type\MixedType;
-use PHPStan\Type\Type;
 use PHPStan\Type\TypehintHelper;
 use ReflectionFunctionAbstract;
 use function array_change_key_case;
@@ -260,9 +259,4 @@ public function getClassConstantMetadata(string $className, string $constantName
 		throw new ShouldNotHappenException();
 	}
 
-	public function getTypeFromString(string $typeString, ?string $className): Type
-	{
-		return $this->parser->getTypeFromString($typeString, $className);
-	}
-
 }

src/Reflection/SignatureMap/Php8SignatureMapProvider.php

@@ -499,9 +499,4 @@ private function findConstantType(string $className, string $constantName): ?Typ
 		return null;
 	}
 
-	public function getTypeFromString(string $typeString, ?string $className): Type
-	{
-		return $this->functionSignatureMapProvider->getTypeFromString($typeString, $className);
-	}
-
 }