test: remove deprecated getSnapshotSettings method (#28250)

Issue number: N/A

---------

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## What is the current behavior?
<!-- Please describe the current behavior that you are modifying. -->

The `getSnapshotSettings` method was used in the pre-generator test
infrastructure. It was deprecated at the start of the generator
migration.

## What is the new behavior?
<!-- Please describe the behavior or changes that are being added by
this PR. -->

- Now that the generator migration is complete, this method is no longer
needed. As a result, I removed it. Developers should use the
`screenshot` function:
https://github.com/ionic-team/ionic-framework/blob/main/core/src/utils/test/playwright/docs/api.md#using-the-return-value-from-each-configuration

## Does this introduce a breaking change?

- [ ] Yes
- [x] No

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and migration path for existing applications below. -->


## Other information

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screenshots of how the component looks before and after the change. -->

Author: liamdebeasi

core/src/components/picker-column/test/test.utils.ts

@@ -39,7 +39,7 @@ export async function testPickerColumn(
     await page.waitForChanges();
 
     screenshots.push({
-      name: `picker-${description}-column-diff-${i}-${page.getSnapshotSettings()}.png`,
+      name: screenshot(`picker-${description}-column-diff-${i}`),
       screenshot: await page.screenshot(),
     });
   }

core/src/utils/test/playwright/docs/api.md

@@ -108,7 +108,6 @@ The [page fixture](https://playwright.dev/docs/test-fixtures) has been extended
 | `setIonViewport` | Resizes the browser window to fit the entire height of `ion-content` on screen. Only needed when taking fullsize screenshots with `ion-content`. |
 | `waitForChanges` | Waits for Stencil to re-render before proceeeding. This is typically only needed when you update a property on a component. |
 | `spyOnEvent` | Creates an event spy that can be used to wait for a [CustomEvent](https://developer.mozilla.org/en-US/docs/Web/API/CustomEvent) to be emitted. |
-| `getSnapshotSettings` (DEPRECATED) | Returns information about the current test (such as mode or direction) to generate a unique screenshot name. Deprecated: Use the `screenshot` function provided by the test [generator](#generators) instead. |
 
 <details>
 

core/src/utils/test/playwright/page/utils/get-snapshot-settings.ts

@@ -1,6 +1,5 @@
 export * from './wait-for-changes';
 export * from './goto';
-export * from './get-snapshot-settings';
 export * from './set-ion-viewport';
 export * from './spy-on-event';
 export * from './set-content';

core/src/utils/test/playwright/page/utils/index.ts

@@ -78,11 +78,6 @@ export interface E2EPage extends Page {
    * Use this method when taking full-screen screenshots.
    */
   setIonViewport: (options?: SetIonViewportOptions) => Promise<void>;
-  /**
-   * This provides metadata that can be used to create a unique screenshot URL.
-   * For example, we need to be able to differentiate between iOS in LTR mode and iOS in RTL mode.
-   */
-  getSnapshotSettings: () => string;
   /**
    * After changes have been made to a component, such as an update to a property or attribute,
    * we need to wait until the changes have been applied to the DOM.

core/src/utils/test/playwright/playwright-declarations.ts

@@ -10,15 +10,7 @@ import { test as base } from '@playwright/test';
 import { PageUtils } from '../press-keys';
 
 import { initPageEvents } from './page/event-spy';
-import {
-  getSnapshotSettings,
-  goto as goToPage,
-  setContent,
-  setIonViewport,
-  spyOnEvent,
-  waitForChanges,
-  locator,
-} from './page/utils';
+import { goto as goToPage, setContent, setIonViewport, spyOnEvent, waitForChanges, locator } from './page/utils';
 import type { LocatorOptions } from './page/utils';
 import type {
   E2EPage,
@@ -57,7 +49,6 @@ export async function extendPageFixture(page: E2EPage, testInfo: TestInfo) {
   page.locator = (selector: string, options?: LocatorOptions) => locator(page, originalLocator, selector, options);
 
   // Custom Ionic methods
-  page.getSnapshotSettings = () => getSnapshotSettings(page, testInfo);
   page.setIonViewport = (options?: SetIonViewportOptions) => setIonViewport(page, options);
   page.waitForChanges = (timeoutMs?: number) => waitForChanges(page, timeoutMs);
   page.spyOnEvent = (eventName: string) => spyOnEvent(page, eventName);