[MIPS] Remove obsolete isa_slot_offset

 The isa_slot_offset variable and its __ISA_IO_base macro is not used
anywhere anymore.  It does not look like a decent interface per today's
standards either.  Remove both including all places of initialization.

Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 0 insertions, 1 deletions

diff --git a/arch/mips/sni/setup.c b/arch/mips/sni/setup.c
index 5484e1c62054..a49272ce7ef5 100644
--- a/arch/mips/sni/setup.c
+++ b/arch/mips/sni/setup.c
@@ -116,7 +116,6 @@ void __init plat_mem_setup(void)
         /*
          * Setup (E)ISA I/O memory access stuff
          */
-        isa_slot_offset = CKSEG1ADDR(0xb0000000);
 #ifdef CONFIG_EISA
         EISA_bus = 1;
 #endif