bug #1095 Remove a port from the default db options (rybakit)

This PR was merged into the 1.2 branch.

Discussion
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Remove a port from the default db options

See https://github.com/silexphp/Silex-Providers/commit/d0f1432d395d5be4d716d3c2c23fd297b815bb4f#commitcomment-9229361

Commits
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753b09c0 Remove a port from default db options

src/Silex/Provider/DoctrineServiceProvider.php

@@ -33,7 +33,6 @@ class DoctrineServiceProvider implements ServiceProviderInterface
             'host'     => 'localhost',
             'user'     => 'root',
             'password' => null,
-            'port'     => 3306,
         );
 
         $app['dbs.options.initializer'] = $app->protect(function () use ($app) {