* recog.h: Remove NO_MD_PROTOTYPES ifdefs.
 	* genflags.c: Use the max_operand_1 logic from genemit.c to
 	calculate how many arguments gen_insn prototypes have.  Remove
 	NO_MD_PROTOTYPES ifdefs from the generated file.
 	* genoutput.c: Don't define NO_MD_PROTOTYPES in the generated
 	file.  Cast gen_insn initializers to insn_gen_fn.
 	* config/alpha/vms.h: Don't define NO_MD_PROTOTYPES.
 	* gcc.texi: Remove documentation of NO_MD_PROTOTYPES.

From-SVN: r31801