xhci: remove xhci_test_trb_in_td_math early development check

Time to remove this test trb in td math check that was added
in early stage of xhci driver development.

It verified that the size, alignment and boundaries of the event and
command rings allocated by the driver itself are correct.

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20230202150505.618915-3-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>