Remove superfluous 5.002 requirement

The "our" syntax requires 5.6 anyway

Author: Max Maischein

lib/HTTP/Status.pm

@@ -6,7 +6,6 @@ use warnings;
 our $VERSION = '6.30';
 
 use Exporter 5.57 'import';
-require 5.002;   # because we use prototypes
 
 our @EXPORT = qw(is_info is_success is_redirect is_error status_message);
 our @EXPORT_OK = qw(is_client_error is_server_error is_cacheable_by_default);