PCI: pciehp: Remove pointless PCIE_MODULE_NAME definition

PCIE_MODULE_NAME is only used once and offers no benefit, so remove it.

Link: https://lore.kernel.org/lkml/20190509141456.223614-10-helgaas@kernel.org


Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Keith Busch <keith.busch@intel.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>