chore: Remove S2 Picker deprecated props from storybook (#8946)

Author: LFDanLu

.storybook-s2/docs/Migrating.jsx

@@ -300,6 +300,7 @@ export function Migrating() {
           <li className={style({font: 'body', marginY: 8})}>Remove <Code>validationState="valid"</Code> (it is no longer supported in Spectrum 2)</li>
           <li className={style({font: 'body', marginY: 8})}>Update <Code>Item</Code> to be a <Code>PickerItem</Code></li>
           <li className={style({font: 'body', marginY: 8})}>Change <Code>isLoading</Code> to <Code>loadingState</Code> and provide the appropriate loading state.</li>
+          <li className={style({font: 'body', marginY: 8})}><Code>defaultSelectedKey</Code> and <Code>selectedKey</Code> have been deprecated in favor of <Code>defaultValue</Code> and <Code>value</Code> respectively. See the <Link href="?path=/docs/picker--docs">props table</Link> for the new accepted types.</li>
         </ul>
 
         <H3>ProgressBar</H3>

packages/@react-spectrum/s2/stories/Picker.stories.tsx

@@ -48,7 +48,9 @@ const meta: Meta<typeof Picker<any>> = {
     description: {control: {type: 'text'}},
     errorMessage: {control: {type: 'text'}},
     children: {table: {disable: true}},
-    contextualHelp: {table: {disable: true}}
+    contextualHelp: {table: {disable: true}},
+    defaultSelectedKey: {table: {disable: true}},
+    selectedKey: {table: {disable: true}}
   },
   args: {...getActionArgs(events)},
   title: 'Picker'