No more regional prebid (#1765)

* Use single version of prebid

* Changeset

.changeset/many-carpets-give.md

@@ -0,0 +1,5 @@
+---
+'@guardian/commercial': minor
+---
+
+Use a single version of prebid instead of splitting by region

package.json

@@ -101,7 +101,7 @@
 		"webpack-merge": "^6.0.1"
 	},
 	"dependencies": {
-		"@guardian/prebid.js": "8.52.0-11",
+		"@guardian/prebid.js": "8.52.0-12",
 		"fastdom": "^1.0.12",
 		"lodash-es": "^4.17.21",
 		"process": "^0.11.10",

src/experiments/ab-tests.ts

@@ -3,7 +3,6 @@ import { gpidPrebidAdUnits } from './tests/gpid-prebid';
 import { mpuWhenNoEpic } from './tests/mpu-when-no-epic';
 import { optOutFrequencyCap } from './tests/opt-out-frequency-cap';
 import { prebidKeywords } from './tests/prebid-keywords';
-import { regionSpecificPrebid } from './tests/region-specific-prebid';
 
 /**
  * You only need to add tests to this file if the code you are testing is here in
@@ -15,6 +14,5 @@ export const concurrentTests: ABTest[] = [
 	mpuWhenNoEpic,
 	optOutFrequencyCap,
 	gpidPrebidAdUnits,
-	regionSpecificPrebid,
 	prebidKeywords,
 ];

src/init/consented/prepare-prebid.ts

@@ -1,16 +1,9 @@
 import type { ConsentFramework } from '@guardian/libs';
 import { getConsentFor, log, onConsent } from '@guardian/libs';
 import { once } from 'lodash-es';
-import { isUserInVariant } from '../../experiments/ab';
-import { regionSpecificPrebid } from '../../experiments/tests/region-specific-prebid';
 import { commercialFeatures } from '../../lib/commercial-features';
 import { isGoogleProxy } from '../../lib/detect/detect-google-proxy';
-import {
-	isInAuOrNz,
-	isInCanada,
-	isInUk,
-	isInUsa,
-} from '../../lib/geo/geo-utils';
+import { isInCanada } from '../../lib/geo/geo-utils';
 import { prebid } from '../../lib/header-bidding/prebid/prebid';
 import { shouldIncludeOnlyA9 } from '../../lib/header-bidding/utils';
 
@@ -23,25 +16,11 @@ const shouldLoadPrebid = () =>
 	!shouldIncludeOnlyA9 &&
 	!isInCanada();
 
-const prebidVersion = () => {
-	if (isUserInVariant(regionSpecificPrebid, 'variant')) {
-		if (isInUk()) {
-			return 'uk';
-		} else if (isInAuOrNz()) {
-			return 'aus-nz';
-		} else if (isInUsa()) {
-			return 'us';
-		}
-		return 'row';
-	}
-	return 'all';
-};
-
 const loadPrebid = async (framework: ConsentFramework): Promise<void> => {
 	if (shouldLoadPrebid()) {
 		await import(
-			/* webpackChunkName: "Prebid.js" */
-			`@guardian/prebid.js/build/dist/${prebidVersion()}/prebid`
+			// @ts-expect-error -- there’s no types for Prebid.js
+			/* webpackChunkName: "Prebid.js" */ '@guardian/prebid.js/build/dist/prebid'
 		);
 		prebid.initialise(window, framework);
 	}

src/lib/header-bidding/prebid/prebid.spec.ts

@@ -15,16 +15,12 @@ jest.mock('lib/dfp/get-advert-by-id', () => ({
 	getAdvertById: jest.fn(),
 }));
 
-jest.mock('experiments/ab', () => ({
-	isUserInVariant: jest.fn(),
-}));
-
 const resetPrebid = () => {
 	delete window.pbjs;
 	// @ts-expect-error -- there’s no types for this
 	delete window.pbjsChunk;
 	jest.resetModules();
-	jest.requireActual('@guardian/prebid.js/build/dist/all/prebid');
+	jest.requireActual('@guardian/prebid.js/build/dist/prebid');
 };
 
 describe('initialise', () => {