chore: remove leftover import

Author: nwidynski

packages/@react-stately/virtualizer/src/OverscanManager.ts

@@ -10,7 +10,6 @@
  * governing permissions and limitations under the License.
  */
 
-import {Orientation} from '@react-types/shared';
 import {Point} from './Point';
 import {Rect} from './Rect';