HID: hid-ortek: remove spurious reference

Remove spurious bugzilla reference from the source comment header.

Also fix the comment to be more correct (it's HID report descriptor
rather than USB).

Signed-off-by: Jiri Kosina <jkosina@suse.cz>

drivers/hid/hid-ortek.c

 /*
  *  HID driver for Ortek PKB-1700/WKB-2000 (wireless keyboard + mouse trackpad).
- *  Fixes LogicalMaximum error in USB report description, see
- *  http://bugzilla.kernel.org/show_bug.cgi?id=14787
+ *  Fixes LogicalMaximum error in HID report description.
  *
  *  Copyright (c) 2010 Johnathon Harris <jmharris@gmail.com>
  */