Revert "Fix date being used in mail packets, timezone was effectively being to a timestamp with the timezone already"

This function is used to get the true date of a message (taking into account the TZ), and needed when creating the TZUTC

This reverts commit ad0ad73b0c.

app/Traits/MessagePath.php

@@ -19,7 +19,7 @@ trait MessagePath
 		$reply .= str_replace("\r---","\r#--",$mo->msg)."\r";
 
 		$reply .= "+------------------------------------[ CONTROL LINES ]-+\r";
-		$reply .= sprintf("DATE: %s\r",$mo->datetime->format('Y-m-d H:i:s'));
+		$reply .= sprintf("DATE: %s\r",$mo->date->format('Y-m-d H:i:s'));
 		if ($mo->msgid)
 			$reply .= sprintf("MSGID: %s\r",$mo->msgid);
 		if ($mo->replyid)