PCI: Remove unneeded kallsyms include

The file was converted from print_fn_descriptor_symbol() to %pF some time
ago (c9bbb4ab "PCI: use %pF instead of print_fn_descriptor_symbol()
in quirks.c").  kallsyms does not seem to be needed anymore.

Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>