change Metasploit3 class names

modules/exploits/android/browser/webview_addjavascriptinterface.rb

@@ -6,7 +6,7 @@
 require 'msf/core'
 require 'msf/core/exploit/android'
 
-class Metasploit3 < Msf::Exploit::Remote
+class Metasploit < Msf::Exploit::Remote
   Rank = ExcellentRanking
 
   include Msf::Exploit::Remote::BrowserExploitServer