Fix types

Author: ascorbic

packages/gatsby-plugin-image/src/components/__tests__/gatsby-image.browser.tsx

@@ -1,5 +1,5 @@
 import React from "react"
-import { GatsbyImage, ISharpGatsbyImageData } from "../gatsby-image.browser"
+import { GatsbyImage, IGatsbyImageData } from "../gatsby-image.browser"
 import { render, waitFor } from "@testing-library/react"
 import * as hooks from "../hooks"
 
@@ -14,7 +14,7 @@ jest.mock(`../../../macros/terser.macro`, () => (strs): string => strs.join(``))
 
 describe(`GatsbyImage browser`, () => {
   let beforeHydrationContent: HTMLDivElement
-  let image: ISharpGatsbyImageData
+  let image: IGatsbyImageData
 
   beforeEach(() => {
     console.warn = jest.fn()

packages/gatsby-plugin-image/src/components/gatsby-image.browser.tsx

@@ -43,7 +43,6 @@ export interface IGatsbyImageData {
   layout: Layout
   height?: number
   backgroundColor?: string
-  sizes?: string
   images: Pick<MainImageProps, "sources" | "fallback">
   placeholder?: Pick<PlaceholderProps, "sources" | "fallback">
   width?: number