Remove access for the given scope.

@param {string} scope - Access scope
function(scope) {
    var savedMap = {};
    var name;
    for (name in this.scopeModeMap) {
      savedMap[name] = this.scopeModeMap[name];
    }
    this.reset();
    delete savedMap[scope];
    for (name in savedMap) {
      this.set(name, savedMap[name]);
    }
  }