remove unused import

Author: timlrx

packages/@contentlayer/source-files/src/fetchData/mapping/field-image.ts

@@ -4,7 +4,6 @@ import { fs, unknownToRelativePosixFilePath } from '@contentlayer2/utils'
 import { identity, OT, pipe, T } from '@contentlayer2/utils/effect'
 import type * as ImageScript from 'imagescript'
 import type sharp from 'sharp'
-import * as URL from 'url'
 
 import { FetchDataError } from '../../errors/index.js'
 import type { HasDocumentContext } from '../DocumentContext.js'