refactor: clean up Pest.php by removing unnecessary comments and unused code

Author: CodeWithKyrian

tests/Pest.php

@@ -1,49 +1,5 @@
 <?php
 
-/*
-|--------------------------------------------------------------------------
-| Test Case
-|--------------------------------------------------------------------------
-|
-| The closure you provide to your test functions is always bound to a specific PHPUnit test
-| case class. By default, that class is "PHPUnit\Framework\TestCase". Of course, you may
-| need to change it using the "pest()" function to bind a different classes or traits.
-|
-*/
-
-pest()->extend(\PhpMcp\Server\Tests\TestCase::class);
-
-/*
-|--------------------------------------------------------------------------
-| Expectations
-|--------------------------------------------------------------------------
-|
-| When you're writing tests, you often need to check that values meet certain conditions. The
-| "expect()" function gives you access to a set of "expectations" methods that you can use
-| to assert different things. Of course, you may extend the Expectation API at any time.
-|
-*/
-
-expect()->extend('toBeOne', function () {
-    return $this->toBe(1);
-});
-
-/*
-|--------------------------------------------------------------------------
-| Functions
-|--------------------------------------------------------------------------
-|
-| While Pest is very powerful out-of-the-box, you may have some testing code specific to your
-| project that you don't want to repeat in every file. Here you can also expose helpers as
-| global functions to help you to reduce the number of lines of code in your test files.
-|
-*/
-
-function something()
-{
-    // ..
-}
-
 // --- Discovery Test Helpers ---
 
 const TEST_DISCOVERY_DIR = __DIR__.'/../_temp_discovery';