Clean up old official extensions registry code (#8998)

* feat: Add unit tests for src/extensions/resolveSource.ts

This commit adds unit tests for the `getExtensionRegistry` function in `src/extensions/resolveSource.ts`.

The tests cover the following cases:
- Fetching the full extension registry.
- Fetching only the featured extensions.
- Handling cases where the `mods` or `featured` properties are missing from the API response.

The tests use `nock` to mock the API responses and `chai` for assertions.

Note: The `npm run format` and `npm run test` commands are currently failing due to an ESLint configuration issue in the repository. The tests were run directly using `npm run mocha` to bypass the linter.

* lint

* THis code is unused, kill it

---------

Co-authored-by: google-labs-jules[bot] <161369871+google-labs-jules[bot]@users.noreply.github.com>

Author: joehan

src/extensions/extensionsHelper.ts

@@ -13,10 +13,8 @@ marked.use(markedTerminal() as any);
 
 import { extensionsOrigin, extensionsPublisherOrigin, storageOrigin } from "../api";
 import { archiveDirectory } from "../archiveDirectory";
-import { convertOfficialExtensionsToList } from "./utils";
 import { getFirebaseConfig } from "../functionsConfig";
 import { getProjectAdminSdkConfigOrCached } from "../emulator/adminSdkConfig";
-import { getExtensionRegistry } from "./resolveSource";
 import { FirebaseError } from "../error";
 import { diagnose } from "./diagnose";
 import { checkResponse } from "./askUserForParam";
@@ -1138,20 +1136,6 @@ export function displayReleaseNotes(args: {
   logger.info(message);
 }
 
-/**
- * Display list of all official extensions and prompt user to select one.
- * @param message The prompt message to display
- * @return Promise that resolves to the extension name (e.g. storage-resize-images)
- */
-export async function promptForOfficialExtension(message: string): Promise<string> {
-  const officialExts = await getExtensionRegistry(true);
-  return await select<string>({
-    message,
-    choices: convertOfficialExtensionsToList(officialExts),
-    pageSize: Object.keys(officialExts).length,
-  });
-}
-
 // TODO(inlined): Fix prompt library so that a choices array doesn't assume all values
 // must be the same type as the literal of the first
 type repeateInstanceResponse = "updateExisting" | "installNew" | "cancel";

src/extensions/resolveSource.ts

@@ -4,7 +4,6 @@ import {
   FUNCTIONS_RESOURCE_TYPE,
   FUNCTIONS_V2_RESOURCE_TYPE,
 } from "./types";
-import { RegistryEntry } from "./resolveSource";
 import { Runtime } from "../deploy/functions/runtimes/supported";
 import { Choice } from "../prompt";
 
@@ -21,22 +20,6 @@ export function convertExtensionOptionToLabeledList(options: ParamOption[]): Cho
   });
 }
 
-/**
- * Convert map of RegistryEntry into Inquirer-friendly list for prompt, with all items unchecked.
- */
-export function convertOfficialExtensionsToList(officialExts: {
-  [key: string]: RegistryEntry;
-}): Choice<string>[] {
-  const l = Object.entries(officialExts).map(([key, entry]) => {
-    return {
-      checked: false,
-      value: `${entry.publisher}/${key}`,
-    };
-  });
-  l.sort((a, b) => a.value.localeCompare(b.value));
-  return l;
-}
-
 /**
  * Generates a random string of lowercase letters and numbers
  * @param length The length of the string