Update monolog_email.rst

Removing the now obsolete comments of https://github.com/symfony/symfony-docs/pull/7896/files/9d2f2fd9df136b63275e0ce991196e9dda213f7d

Author: ThomasLandauer

logging/monolog_email.rst

@@ -64,14 +64,6 @@ it is broken down.
                     action-level="critical"
                     handler="deduplicated"
                 />
-                <!--
-                use the time attribute for values other than the default
-                of 60 seconds:
-                <monolog:handler name="deduplicated"
-                    type="deduplicated"
-                    time="10"
-                    handler="swift" />
-                -->
                 <monolog:handler
                     name="deduplicated"
                     type="deduplication"
@@ -116,8 +108,6 @@ it is broken down.
                 ),
                 'deduplicated' => array(
                     'type'    => 'deduplication',
-                    // uncomment this line for values other than 60 seconds:
-                    // 'time' => 10,
                     'handler' => 'swift',
                 ),
                 'swift' => array(