Remove leftover comments and code for 'vector' render mode

src/ol/layer/VectorTile.js

@@ -37,8 +37,6 @@ import {assign} from '../obj.js';
  *  * `'hybrid'`: Polygon and line elements are rendered as images, so pixels are scaled during zoom
  *    animations. Point symbols and texts are accurately rendered as vectors and can stay upright on
  *    rotated views.
- *  * `'vector'`: Vector tiles are rendered as vectors. Most accurate rendering even during
- *    animations, but slower performance than the other options.
  *
  * When `declutter` is set to `true`, `'hybrid'` will be used instead of `'image'`.
  * @property {import("../source/VectorTile.js").default} [source] Source.

src/ol/layer/VectorTileRenderType.js

@@ -11,8 +11,6 @@
  *  * `'hybrid'`: Polygon and line elements are rendered as images, so pixels
  *    are scaled during zoom animations. Point symbols and texts are accurately
  *    rendered as vectors and can stay upright on rotated views.
- *  * `'vector'`: Vector tiles are rendered as vectors. Most accurate rendering
- *    even during animations, but slower performance than the other options.
  * @api
  */
 export default {

src/ol/renderer/canvas/VectorTileLayer.js

@@ -15,7 +15,6 @@ import Units from '../../proj/Units.js';
 import ReplayType from '../../render/ReplayType.js';
 import {labelCache} from '../../render/canvas.js';
 import CanvasBuilderGroup from '../../render/canvas/BuilderGroup.js';
-import {ORDER} from '../../render/replay.js';
 import CanvasTileLayerRenderer from './TileLayer.js';
 import {getSquaredTolerance as getSquaredRenderTolerance, renderFeature} from '../vector.js';
 import {
@@ -47,8 +46,7 @@ const IMAGE_REPLAYS = {
  */
 const VECTOR_REPLAYS = {
   'image': [ReplayType.DEFAULT],
-  'hybrid': [ReplayType.IMAGE, ReplayType.TEXT, ReplayType.DEFAULT],
-  'vector': ORDER
+  'hybrid': [ReplayType.IMAGE, ReplayType.TEXT, ReplayType.DEFAULT]
 };