* config/sparc/litecoff.h (TARGET_OS_CPP_BUILTINS): Do not
	register "sparc".
	* config/sparc/sysv4-only.h (TARGET_OS_CPP_BUILTINS): Likewise.
	* config/sparc/rtemself.h (TARGET_SUB_OS_CPP_BUILTINS): Likewise.
	* config/sparc/sol2-64.h (TARGET_SUB_OS_CPP_BUILTINS): Delete.
	* config/sparc/sp64-elf.h (TARGET_SUB_OS_CPP_BUILTINS): Likewise.

From-SVN: r92864