Resolve #6807, remove all OSVDB references.

OSVDB is no longer a vulnerability database, therefore all the
references linked to it are invalid.

Resolve #6807

modules/exploits/android/browser/webview_addjavascriptinterface.rb

@@ -65,7 +65,6 @@ class MetasploitModule < Msf::Exploit::Remote
         ['CVE', '2012-6636'], # original CVE for addJavascriptInterface
         ['CVE', '2013-4710'], # native browser addJavascriptInterface (searchBoxJavaBridge_)
         ['EDB', '31519'],
-        ['OSVDB', '97520']
       ],
       'Platform'            => ['android', 'linux'],
       'Arch'                => [ARCH_DALVIK, ARCH_X86, ARCH_ARMLE, ARCH_MIPSLE],