ACPI: acpi_drivers.h: Update the kernel doc

pci_bind.c is not exist anymore, so just remove all the
.c file reference as the c file reference is not useful
and avoid future non-consistency update.

Signed-off-by: Hanjun Guo <[e-mail]>
Signed-off-by: Rafael J. Wysocki <[e-mail]>

include/acpi/acpi_drivers.h

···
    -------------------------------------------------------------------------- */
 
 
-/* ACPI PCI Interrupt Link (pci_link.c) */
+/* ACPI PCI Interrupt Link */
 
 int acpi_irq_penalty_init(void);
 int acpi_pci_link_allocate_irq(acpi_handle handle, int index, int *triggering,
 			       int *polarity, char **name);
 int acpi_pci_link_free_irq(acpi_handle handle);
 
-/* ACPI PCI Device Binding (pci_bind.c) */
+/* ACPI PCI Device Binding */
 
 struct pci_bus;