MIPS: Alchemy: remove PB1000 support

Noone seems to have test hardware or care anymore.  Drop PB1000 support
and along with it the old Alchemy PCMCIA socket driver.

Signed-off-by: Manuel Lauss <manuel.lauss@googlemail.com>
To: linux-mips@linux-mips.org
Cc: netdev@vger.kernel.org
Cc: linux-pcmcia@lists.infradead.org
Patchwork: https://patchwork.linux-mips.org/patch/2881/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/alchemy/devboards/prom.c b/arch/mips/alchemy/devboards/prom.c
index e5306b5..56d7ea5 100644
--- a/arch/mips/alchemy/devboards/prom.c
+++ b/arch/mips/alchemy/devboards/prom.c
@@ -33,7 +33,7 @@
 #include <asm/mach-au1x00/au1000.h>
 #include <prom.h>
 
-#if defined(CONFIG_MIPS_PB1000) || defined(CONFIG_MIPS_DB1000) || \
+#if defined(CONFIG_MIPS_DB1000) || \
     defined(CONFIG_MIPS_PB1100) || defined(CONFIG_MIPS_DB1100) || \
     defined(CONFIG_MIPS_PB1500) || defined(CONFIG_MIPS_DB1500) || \
     defined(CONFIG_MIPS_BOSPORUS) || defined(CONFIG_MIPS_MIRAGE)