having approval for it since 4.1.4, I also have some assurance that
very few people actually used this: to enable these calls a user
had to #define HAVE_DEPRECATED_411_API and recompile the client library.


include/mysql.h:
  remove defines for obsolete 4.1 prepared statements C API names
libmysql/libmysql.c:
  Remove #ifdefed implementation of obsolete mysql_prepare call.