code: function removeMethod (char, method) {
    if (!hasKeybinding(char, method)) return;
    var fnIndex = bindings[char].methods.indexOf(method);
    window.removeEventListener('keyup', bindings[char].listeners[fnIndex]);
    bindings[char].methods.splice(fnIndex, 1);
    bindings[char].listeners.splice(fnIndex, 1);
  
    if (!bindings[char].methods.length) {
      delete bindings[char];
    } else if (fnIndex === 0) {
      window.addEventListener('keyup', bindings[char].listeners[0]);
    }
  }
docs: - Removes the event from window and the methods from bindings - @arg {String} char     - the character key to be removed - @arg {Function} method - the callback handler to remove