message: Fix Popover typings
diff: @@ -221,8 +221,7 @@ declare module '@primer/components' {
  export const PointerBox: React.FunctionComponent<PointerBoxProps>
  - export interface PopoverProps extends BoxProps, LayoutProps {
  - as?: React.ReactType
  + export interface PopoverProps extends BoxProps {
  caret?:
  | 'top'
  | 'bottom'
  @@ -240,9 +239,7 @@ declare module '@primer/components' {
  relative?: boolean
  }
  - export interface PopoverContentProps extends BorderBoxProps {
  - as?: React.ReactType
  - }
  + export interface PopoverContentProps extends BorderBoxProps { }
  export const Popover: React.FunctionComponent<PopoverProps> & {
  Content: React.FunctionComponent<PopoverContentProps>
  