Remove PointerBox from @primer-react (#6857)

Co-authored-by: Jon Rohan <yes@jonrohan.codes>

Author: pksjce

.changeset/beige-plums-obey.md

@@ -0,0 +1,5 @@
+---
+"@primer/react": major
+---
+
+Remove PointerBox from @primer-react

contributor-docs/behaviors.md

@@ -51,7 +51,7 @@ Generic behaviors provide functionality that is not specific to any single compo
 
 ## Component behaviors
 
-Component behaviors specifically implement behaviors for components. Therefore, hooks that implement component behaviors should always return an object containing props objects to be spread across the elements that make up the component's JSX. While component behaviors do not necessarily have to be one-to-one, **a component may only use one component behavior**. Sometimes it makes sense to use the same component behavior on several components. For example: the Dialog, Popover, and PointerBox components may all use the `usePopover` component behavior.
+Component behaviors specifically implement behaviors for components. Therefore, hooks that implement component behaviors should always return an object containing props objects to be spread across the elements that make up the component's JSX. While component behaviors do not necessarily have to be one-to-one, **a component may only use one component behavior**. Sometimes it makes sense to use the same component behavior on several components. For example: the Dialog, and Popover components may all use the `usePopover` component behavior.
 
 ### Component behavior examples
 

packages/react/script/react-compiler.mjs

@@ -20,7 +20,6 @@ const unsupported = new Set(
     'src/ConfirmationDialog/**/*.tsx',
     'src/Pagehead/**/*.tsx',
     'src/Pagination/**/*.tsx',
-    'src/PointerBox/**/*.tsx',
     'src/SelectPanel/**/*.tsx',
     'src/SideNav.tsx',
     'src/internal/components/CheckboxOrRadioGroup/**/*.tsx',

packages/react/src/PointerBox/PointerBox.docs.json

@@ -112,8 +112,6 @@ exports[`@primer/react > should not update exports without a semver change 1`] =
   "type PageLayoutProps",
   "Pagination",
   "type PaginationProps",
-  "PointerBox",
-  "type PointerBoxProps",
   "Popover",
   "type PopoverContentProps",
   "type PopoverProps",
@@ -242,8 +240,6 @@ exports[`@primer/react/deprecated > should not update exports without a semver c
   "type OcticonProps",
   "Pagehead",
   "type PageheadProps",
-  "PointerBox",
-  "type PointerBoxProps",
   "TabNav",
   "type TabNavLinkProps",
   "type TabNavProps",

packages/react/src/PointerBox/PointerBox.stories.tsx

@@ -42,7 +42,3 @@ export type {TabNavProps, TabNavLinkProps} from '../TabNav'
 export {default as Tooltip} from '../Tooltip/Tooltip'
 export type {TooltipProps} from '../Tooltip/Tooltip'
 // end of v37.0.0
-
-// Deprecated in v38.0.0
-export {default as PointerBox} from '../PointerBox'
-export type {PointerBoxProps} from '../PointerBox'