Update vendors out of sync

Signed-off-by: Lantao Liu <lantaol@google.com>

vendor/github.com/godbus/dbus/doc.go

@@ -19,8 +19,6 @@ respective D-Bus equivalents:
      bool        | BOOLEAN
      int16       | INT16
      uint16      | UINT16
-     int         | INT32
-     uint        | UINT32
      int32       | INT32
      uint32      | UINT32
      int64       | INT64
@@ -30,7 +28,6 @@ respective D-Bus equivalents:
      ObjectPath  | OBJECT_PATH
      Signature   | SIGNATURE
      Variant     | VARIANT
-     interface{} | VARIANT
      UnixFDIndex | UNIX_FD
 
 Slices and arrays encode as ARRAYs of their element type.
@@ -44,9 +41,6 @@ be skipped.
 
 Pointers encode as the value they're pointed to.
 
-Types convertible to one of the base types above will be mapped as the
-base type.
-
 Trying to encode any other type or a slice, map or struct containing an
 unsupported type will result in an InvalidTypeError.