mips/PCI: removed unused pci_probe configurability
mips/PCI: removed unused pci_probe configurability

We never assign anything other than PCI_ASSIGN_ALL_BUSSES to pci_probe,
so just remove the indirection.  If configurability is required in the
future, please use the pci_flags/PCI_REASSIGN_ALL_BUS functionality
as is done for powerpc.

CC: Ralf Baechle <92f48d309cda194c8eda36aa8f9ae28c488fa208@linux-mips.org>
CC: 562397917b9a8bf316569a848858b12fb417723f@linux-mips.org
Signed-off-by: Bjorn Helgaas <f10ec01be0c6b54271af5c550cd257810bdf3268@google.com>

TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs