How much bleeding is normal after suture removal?

Usually there. Isn't much bleeding - often none. However, if you have a suture that is embedded in tissue - that may cause more bleeding when removed.
A small amount. It is common to have a little oozing following removal of sutures. Any bleeding should settle down easily with some pressure and a tightly fitting dressing. If it continues to bleed you should have the wound reviewed by a doctor or a nurse.