remove workaround for vega height bug

Related to #31461

Author: alexwizp

src/plugins/vis_type_vega/public/__snapshots__/vega_visualization.test.js.snap

@@ -195,13 +195,9 @@ export class VegaBaseView {
     const width = Math.max(0, this._$container.width() - this._parser.paddingWidth);
     const height =
       Math.max(0, this._$container.height() - this._parser.paddingHeight) - heightExtraPadding;
-    // Somehow the `height` signal in vega becomes zero if the height is set exactly to
-    // an even number. This is a dirty workaround for this.
-    // when vega itself is updated again, it should be checked whether this is still
-    // necessary.
-    const adjustedHeight = height + 0.00000001;
-    if (view.width() !== width || view.height() !== adjustedHeight) {
-      view.width(width).height(adjustedHeight);
+
+    if (view.width() !== width || view.height() !== height) {
+      view.width(width).height(height);
       return true;
     }
     return false;