Remove unused Cloudflare image resizing function (#4507)

packages/gitbook/src/lib/images/resizer/cf-fetch.ts

@@ -1,33 +0,0 @@
-import type { CloudflareImageOptions } from './types';
-import { copyImageResponse } from './utils';
-import { getLogger } from '@/lib/logger';
-
-/**
- * Resize an image by doing a request to the image itself using the Cloudflare fetch.
- * https://developers.cloudflare.com/images/transform-images/transform-via-workers/
- */
-export async function resizeImageWithCFFetch(
-    input: string,
-    options: CloudflareImageOptions & {
-        signal?: AbortSignal;
-    }
-): Promise<Response> {
-    const { signal, ...resizeOptions } = options;
-
-    const logger = getLogger().subLogger('imageResizing');
-    logger.log(`resize image using cf-fetch: ${input}`);
-
-    return copyImageResponse(
-        await fetch(input, {
-            headers: {
-                // Pass the `Accept` header, as Cloudflare uses this to validate the format.
-                Accept:
-                    resizeOptions.format === 'json'
-                        ? 'application/json'
-                        : `image/${resizeOptions.format || 'jpeg'}`,
-            },
-            signal,
-            cf: { image: resizeOptions },
-        })
-    );
-}

packages/gitbook/src/lib/images/resizer/resizeImage.ts

@@ -3,7 +3,6 @@ import assertNever from 'assert-never';
 
 import { GITBOOK_IMAGE_RESIZE_MODE } from '../../env';
 import { SizableImageAction, checkIsSizableImageURL } from '../checkIsSizableImageURL';
-import { resizeImageWithCFFetch } from './cf-fetch';
 import { resizeImageWithGitbookServices } from './gitbook-service';
 import type { CloudflareImageJsonFormat, CloudflareImageOptions } from './types';
 import { getLogger } from '@/lib/logger';
@@ -73,7 +72,6 @@ export async function resizeImage(
 
     switch (GITBOOK_IMAGE_RESIZE_MODE) {
         case 'cf-fetch':
-            return resizeImageWithCFFetch(input, options);
         case 'gitbook-service':
         case 'cdn-cgi':
             return resizeImageWithGitbookServices(input, options);