message: docs: remove reference to `usePortal` in Popover docs
diff: @@ -459,7 +459,6 @@ happen when the component is displayed.
  | `closeOnEsc` | `boolean` | `true` | If `true`, close the popover when the `esc` key is pressed |
  | `children` | `React.ReactNode`, `(props: InternalState) => React.ReactNode` | | The children of the popover |
  | `gutter` | `number` | `4` | The gap (in pixels) to apply between the popover and the target. Used by `popper.js` |
  -| `usePortal` | `boolean` | `false` | If `true` the popover is displayed with a `Portal`. Rendering content inside a Portal allows the popover content to escape the physical bounds of its parent while still being positioned correctly relative to its target |
  | `onOpen` | `() => void` | | Callback fired when the popover opens |
  | `onClose` | `() => void` | | Callback fired when the popover closes |
  | `isLazy` | `boolean` | | If `true`, the popover content won't render until the popover is open. |
  