test(multiple): clean up standalone flags (#30189)

Removes all the remaining `standalone: true` usages since standalone is the default now.

Author: crisbeto

src/cdk-experimental/combobox/combobox.spec.ts

@@ -385,7 +385,6 @@ describe('Combobox', () => {
       <button id="applyButton" (click)="toggleCombobox.updateAndClose(input.value)">Apply</button>
     </div>
   </ng-template>`,
-  standalone: true,
   imports: [CdkComboboxModule],
 })
 class ComboboxToggle {

src/cdk-experimental/scrolling/virtual-scroll-viewport.spec.ts

@@ -95,7 +95,6 @@ function finishInit(fixture: ComponentFixture<any>) {
     }
   `,
   encapsulation: ViewEncapsulation.None,
-  standalone: true,
   imports: [ScrollingModule, ExperimentalScrollingModule],
 })
 class AutoSizeVirtualScroll {

src/cdk-experimental/selection/selection.spec.ts

@@ -452,7 +452,6 @@ describe('cdkSelectionColumn with multiple = false', () => {
         </li>
       }
     </ul>`,
-  standalone: true,
   imports: [CdkSelectionModule, AsyncPipe],
 })
 class ListWithMultiSelection {
@@ -517,7 +516,6 @@ class ListWithMultiSelection {
         </li>
       }
     </ul>`,
-  standalone: true,
   imports: [CdkSelectionModule, AsyncPipe],
 })
 class ListWithSingleSelection {
@@ -559,7 +557,6 @@ class ListWithSingleSelection {
           cdkRowSelection [cdkRowSelectionValue]="row"></tr>
     </table>
     `,
-  standalone: true,
   imports: [CdkSelectionModule, CdkTableModule],
 })
 class MultiSelectTableWithSelectionColumn {
@@ -627,7 +624,6 @@ class MultiSelectTableWithSelectionColumn {
           cdkRowSelection [cdkRowSelectionValue]="row"></tr>
     </table>
     `,
-  standalone: true,
   imports: [CdkSelectionModule, CdkTableModule],
 })
 class SingleSelectTableWithSelectionColumn {

src/cdk-experimental/table-scroll-container/table-scroll-container.spec.ts

@@ -293,7 +293,6 @@ class FakeDataSource extends DataSource<TestData> {
     </table>
     </div>
   `,
-  standalone: true,
   imports: [CdkTableModule, CdkTableScrollContainerModule],
   styles: `
     .cdk-header-cell, .cdk-cell, .cdk-footer-cell {

src/cdk/a11y/aria-describer/aria-describer.spec.ts

@@ -400,7 +400,6 @@ function expectMessage(el: Element, message: string) {
     <div id="description-with-existing-id">Hello</div>
     <div description-without-id>Hey</div>
   `,
-  standalone: true,
   imports: [A11yModule],
 })
 class TestApp {

src/cdk/a11y/focus-monitor/focus-monitor.spec.ts

@@ -901,14 +901,12 @@ describe('FocusMonitor input label detection', () => {
 
 @Component({
   template: `<div class="parent"><button>focus me!</button></div>`,
-  standalone: true,
   imports: [A11yModule],
 })
 class PlainButton {}
 
 @Component({
   template: `<button cdkMonitorElementFocus (cdkFocusChange)="focusChanged($event)"></button>`,
-  standalone: true,
   imports: [A11yModule],
 })
 class ButtonWithFocusClasses {
@@ -917,28 +915,24 @@ class ButtonWithFocusClasses {
 
 @Component({
   template: `<div tabindex="0" cdkMonitorElementFocus><button></button></div>`,
-  standalone: true,
   imports: [A11yModule],
 })
 class ComplexComponentWithMonitorElementFocus {}
 
 @Component({
   template: `<div tabindex="0" cdkMonitorSubtreeFocus><button></button></div>`,
-  standalone: true,
   imports: [A11yModule],
 })
 class ComplexComponentWithMonitorSubtreeFocus {}
 
 @Component({
   template: `<div cdkMonitorSubtreeFocus><button cdkMonitorElementFocus></button></div>`,
-  standalone: true,
   imports: [A11yModule],
 })
 class ComplexComponentWithMonitorSubtreeFocusAndMonitorElementFocus {}
 
 @Component({
   template: `<ng-container cdkMonitorElementFocus></ng-container>`,
-  standalone: true,
   imports: [A11yModule],
 })
 class FocusMonitorOnCommentNode {}
@@ -948,14 +942,12 @@ class FocusMonitorOnCommentNode {}
     <label for="test-checkbox">Check me</label>
     <input id="test-checkbox" type="checkbox">
   `,
-  standalone: true,
   imports: [A11yModule],
 })
 class CheckboxWithLabel {}
 
 @Component({
   template: `<button cdkMonitorElementFocus #exportedDir="cdkMonitorFocus"></button>`,
-  standalone: true,
   imports: [A11yModule],
 })
 class ExportedFocusMonitor {

src/cdk/a11y/focus-monitor/focus-monitor.zone.spec.ts

@@ -41,7 +41,6 @@ describe('FocusMonitor observable stream Zone.js integration', () => {
 
 @Component({
   template: `<div class="parent"><button>focus me!</button></div>`,
-  standalone: true,
   imports: [A11yModule],
 })
 class PlainButton {}

src/cdk/a11y/focus-trap/configurable-focus-trap.spec.ts

@@ -115,7 +115,6 @@ function createComponent<T>(
       <button>SAVE</button>
     </div>
   `,
-  standalone: true,
 })
 class SimpleFocusTrap implements AfterViewInit {
   private _focusTrapFactory = inject(ConfigurableFocusTrapFactory);

src/cdk/a11y/focus-trap/event-listener-inert-strategy.spec.ts

@@ -85,7 +85,6 @@ function createComponent<T>(
       <button #secondFocusable>SAVE</button>
     </div>
   `,
-  standalone: true,
 })
 class SimpleFocusTrap implements AfterViewInit {
   private _focusTrapFactory = inject(ConfigurableFocusTrapFactory);

src/cdk/a11y/focus-trap/focus-trap.spec.ts

@@ -352,7 +352,6 @@ function getActiveElement() {
       <button>SAVE</button>
     </div>
     `,
-  standalone: true,
   imports: [A11yModule, PortalModule],
 })
 class SimpleFocusTrap {
@@ -371,7 +370,6 @@ const AUTO_FOCUS_TEMPLATE = `
 
 @Component({
   template: AUTO_FOCUS_TEMPLATE,
-  standalone: true,
   imports: [A11yModule, PortalModule],
 })
 class FocusTrapWithAutoCapture {
@@ -383,7 +381,6 @@ class FocusTrapWithAutoCapture {
 @Component({
   template: AUTO_FOCUS_TEMPLATE,
   encapsulation: ViewEncapsulation.ShadowDom,
-  standalone: true,
   imports: [A11yModule, PortalModule],
 })
 class FocusTrapWithAutoCaptureInShadowDom extends FocusTrapWithAutoCapture {}
@@ -397,7 +394,6 @@ class FocusTrapWithAutoCaptureInShadowDom extends FocusTrapWithAutoCapture {}
       </div>
     }
   `,
-  standalone: true,
   imports: [A11yModule, PortalModule],
 })
 class FocusTrapWithBindings {
@@ -418,7 +414,6 @@ class FocusTrapWithBindings {
       <input>
     </div>
     `,
-  standalone: true,
   imports: [A11yModule, PortalModule],
 })
 class FocusTrapTargets {
@@ -431,7 +426,6 @@ class FocusTrapTargets {
       <div cdkFocusInitial></div>
     </div>
     `,
-  standalone: true,
   imports: [A11yModule, PortalModule],
 })
 class FocusTrapUnfocusableTarget {
@@ -446,7 +440,6 @@ class FocusTrapUnfocusableTarget {
       </svg>
     </div>
     `,
-  standalone: true,
   imports: [A11yModule, PortalModule],
 })
 class FocusTrapWithSvg {
@@ -459,7 +452,6 @@ class FocusTrapWithSvg {
       <p>Hello</p>
     </div>
     `,
-  standalone: true,
   imports: [A11yModule, PortalModule],
 })
 class FocusTrapWithoutFocusableElements {
@@ -478,7 +470,6 @@ class FocusTrapWithoutFocusableElements {
     </div>
   </ng-template>
   `,
-  standalone: true,
   imports: [A11yModule, PortalModule],
 })
 class FocusTrapInsidePortal {