Revert "erp5testnode: Choose unusal monitor port"

This reverts commit 17b896e4.

This is possibly incorrect approach. Current work which detected this issue
will be recoded to workaround it.

software/erp5testnode/buildout.hash.cfg

@@ -18,4 +18,4 @@ md5sum = 307663d73ef3ef94b02567ecd322252e
 
 [template-default]
 filename = instance-default.cfg
-md5sum = e8f8f29b9af7d9017dc34d638fe07c5a
+md5sum = a76803eedf0c66fe7649b62efc86c8fe

software/erp5testnode/instance-default.cfg

@@ -24,9 +24,6 @@ recipe = slapos.cookbook:publish
 url = $${shellinabox-frontend:url}
 frontend-url = $${testnode-frontend:connection-secure_access}
 
-[monitor-instance-parameter]
-monitor-httpd-port = 48196
-
 [pwgen]
 recipe = slapos.cookbook:generate.password
 storage-path = $${buildout:directory}/.password