Merge pull request #4833 from browner12/patch-1

[5.7] remove PHP mail driver

Author: taylorotwell

mail.md

@@ -25,7 +25,7 @@
 <a name="introduction"></a>
 ## Introduction
 
-Laravel provides a clean, simple API over the popular [SwiftMailer](https://swiftmailer.symfony.com/) library with drivers for SMTP, Mailgun, SparkPost, Amazon SES, PHP's `mail` function, and `sendmail`, allowing you to quickly get started sending mail through a local or cloud based service of your choice.
+Laravel provides a clean, simple API over the popular [SwiftMailer](https://swiftmailer.symfony.com/) library with drivers for SMTP, Mailgun, SparkPost, Amazon SES, and `sendmail`, allowing you to quickly get started sending mail through a local or cloud based service of your choice.
 
 <a name="driver-prerequisites"></a>
 ### Driver Prerequisites