chore(richtext-lexical): remove outdated custom block component examples (#9754)

test/fields/collections/Lexical/InlineFieldsDisplayComponent.tsx

@@ -1,9 +0,0 @@
-'use client'
-
-import type React from 'react'
-
-export const EmbedComponent: React.FC<any> = (props) => {
-  const { data } = props
-
-  return <span>{data.key}</span>
-}

test/fields/collections/Lexical/LabelComponent.tsx

@@ -1,12 +0,0 @@
-'use client'
-
-import type { Block, PayloadClientReactComponent } from 'payload'
-
-import React from 'react'
-
-export const LabelComponent: PayloadClientReactComponent<Block['admin']['components']['Label']> = (
-  props,
-) => {
-  const { formData } = props
-  return <div>{formData?.key}</div>
-}