[MIPS] IP22: Remove SYS_SUPPORTS_SMP test code.

	select SYS_SUPPORTS_32BIT_KERNEL

	select SYS_SUPPORTS_64BIT_KERNEL

	select SYS_SUPPORTS_BIG_ENDIAN

	select SYS_SUPPORTS_SMP

	help

	  This are the SGI Indy, Challenge S and Indigo2, as well as certain

	  OEM variants like the Tandem CMN B006S. To compile a Linux kernel