test: remove styles no longer needed with new base styles (#9914)

Author: web-padawan

packages/field-highlighter/test/test-styles.test.js

@@ -1,17 +1,5 @@
 import { css, registerStyles } from '@vaadin/vaadin-themable-mixin/vaadin-themable-mixin.js';
 
-// TODO: subset of Lumo needed for unit tests to pass.
-// These should be eventually covered by base styles.
-registerStyles(
-  'vaadin-text-field',
-  css`
-    /* For user-tags scrollable container tests */
-    ::slotted([slot='input']) {
-      min-height: 2.25rem;
-    }
-  `,
-);
-
 registerStyles(
   'vaadin-select-overlay',
   css`

packages/select/test/select-test-styles.test.js

@@ -14,7 +14,6 @@ import {
 } from '@vaadin/testing-helpers';
 import sinon from 'sinon';
 import './not-animated-styles.js';
-import './select-test-styles.test.js';
 import '../src/vaadin-select.js';
 import '@vaadin/item/src/vaadin-item.js';
 import '@vaadin/list-box/src/vaadin-list-box.js';

packages/select/test/select.test.js

@@ -1,48 +1,20 @@
 import { css, registerStyles } from '@vaadin/vaadin-themable-mixin/vaadin-themable-mixin.js';
 
-// TODO: subset of Lumo needed for unit tests to pass.
-// These should be eventually covered by base styles.
 registerStyles(
   'vaadin-tabs',
   css`
     ::slotted(vaadin-tab) {
-      display: flex;
       box-sizing: border-box;
-      padding: 6px 8px;
       font-family: -apple-system, 'system-ui', Roboto, 'Segoe UI', Helvetica, Arial, sans-serif;
-      font-size: 16px;
-      font-weight: 500;
       min-width: 55px; /* Use fixed width for scroll tests */
     }
 
     :host(:not([orientation='vertical'])) {
-      position: relative;
       min-height: 2.75rem;
     }
 
     [part='tabs'] {
       gap: 0; /* Disable gap for scroll tests */
     }
-
-    [part$='button'] {
-      position: absolute;
-      box-sizing: border-box;
-      z-index: 1;
-      height: 100%;
-      padding: 6px 8px;
-    }
-
-    [part$='button']::after {
-      width: 1lh;
-      height: 1lh;
-    }
-
-    [part='forward-button'] {
-      inset-inline-end: 0;
-    }
-
-    :host([orientation='vertical']) [part$='button'] {
-      display: none;
-    }
   `,
 );

packages/tabs/test/tabs-test-styles.js

@@ -1,7 +1,6 @@
 import { setViewport } from '@vaadin/test-runner-commands';
 import { fixtureSync, nextFrame, nextRender, nextResize } from '@vaadin/testing-helpers';
 import './not-animated-styles.js';
-import './dialog-form-layout-test-styles.js';
 import '@vaadin/form-layout/src/vaadin-form-layout.js';
 import '@vaadin/form-layout/src/vaadin-form-item.js';
 import '@vaadin/dialog/src/vaadin-dialog.js';