Run spider mtr suites in 10.1 only on demand.

storage/spider/mysql-test/spider/bg/suite.pm

@@ -4,6 +4,7 @@ package My::Suite::Spider;
 
 return "No Spider engine" unless $ENV{HA_SPIDER_SO};
 return "Not run for embedded server" if $::opt_embedded_server;
+return "Test needs --big-test" unless $::opt_big_test;
 
 bless { };
 

storage/spider/mysql-test/spider/suite.pm

@@ -4,8 +4,7 @@ package My::Suite::Spider;
 
 return "No Spider engine" unless $ENV{HA_SPIDER_SO};
 return "Not run for embedded server" if $::opt_embedded_server;
-
-sub is_default { 1 }
+return "Test needs --big-test" unless $::opt_big_test;
 
 bless { };