Remove old comments

#

##############################################################################

# We are to use handle_options() in "mysys/my_getopt.c" for the C version

#

# In the C version we want to use structs and, in some cases, arrays of

# structs. We let each struct be a separate hash.

# Misc global variables

our $mysql_version_id;

our $glob_mysql_test_dir=         undef;