MIPS: Kconfig cleanup

arch/mips/Kconfig already sets GENERIC_HARDIRQS_NO__DO_IRQ unconditionally.
Remove the redundant select from the Loongson Kconfig.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/loongson/Kconfig b/arch/mips/loongson/Kconfig
index c97ca69..6e1b77f 100644
--- a/arch/mips/loongson/Kconfig
+++ b/arch/mips/loongson/Kconfig
@@ -20,7 +20,6 @@
 	select SYS_SUPPORTS_LITTLE_ENDIAN
 	select SYS_SUPPORTS_HIGHMEM
 	select SYS_HAS_EARLY_PRINTK
-	select GENERIC_HARDIRQS_NO__DO_IRQ
 	select GENERIC_ISA_DMA_SUPPORT_BROKEN
 	select CPU_HAS_WB
 	select LOONGSON_MC146818
@@ -40,7 +39,6 @@
 	select CS5536
 	select CSRC_R4K if ! MIPS_EXTERNAL_TIMER
 	select DMA_NONCOHERENT
-	select GENERIC_HARDIRQS_NO__DO_IRQ
 	select GENERIC_ISA_DMA_SUPPORT_BROKEN
 	select HW_HAS_PCI
 	select I8259