remove obsolete test and fix a missing exception

src/Psalm/Internal/Type/ParseTreeCreator.php

@@ -757,7 +757,10 @@ class ParseTreeCreator
                 if ($nexter_token !== null && $nexter_token[0] === '}') {
                     $new_leaf->terminated = true;
                     ++$this->t;
+                } elseif ($nexter_token === null) {
+                    throw new TypeParseTreeException('Unclosed bracket in keyed array');
                 }
+
                 break;
 
             case '(':

tests/AnnotationTest.php

@@ -1490,14 +1490,6 @@ class AnnotationTest extends TestCase
                     ',
                 'error_message' => 'UndefinedDocblockClass',
             ],
-            'preventBadTKeyedArrayFormat' => [
-                '<?php
-                    /**
-                     * @param array{} $arr
-                     */
-                    function bar(array $arr): void {}',
-                'error_message' => 'InvalidDocblock',
-            ],
             'noPhpStormAnnotationsThankYou' => [
                 '<?php
                     /** @param ArrayIterator|string[] $i */