Remove inert polyfill as it is comfortably baseline now

package.json

@@ -33,7 +33,6 @@
   "dependencies": {
     "@lion/tabs": "^0.13.1",
     "hex-to-css-filter": "^5.4.0",
-    "lit": "^3.1.3",
-    "wicg-inert": "^3.1.2"
+    "lit": "^3.1.3"
   }
-}
+}

rollup.config.js

@@ -86,10 +86,6 @@ export default [
 				patterns: [ 'fonts/*.woff2', 'meta/mashup.png' ],
 				rootDir: './site'
 			}),
-			copy({
-				patterns: [ 'inert.esm.js' ],
-				rootDir: './node_modules/wicg-inert/dist'
-			}),
 			// Print bundle summary
 			summary()
 		],

site/src/components/rec-carousel/rec-carousel.js

@@ -2,7 +2,6 @@ import { LitElement, html, unsafeCSS, render } from 'lit';
 import { repeat } from 'lit/directives/repeat.js';
 import { styleMap } from 'lit/directives/style-map.js';
 import styles from './rec-carousel.scss';
-import 'wicg-inert';
 
 /**
  * Allows a user to navigate through a set of images with captions.
@@ -300,7 +299,7 @@ export class RecCarousel extends LitElement {
 			}
 		}
 
-		/* Running the inert polyfill is expensive, so shouldn't happen _during_ the animation */
+		/* Probably best not to set inert _during_ the animation */
 		requestIdleCallback(() => this._slides.forEach(slide => {
 			const hidden = slide.getAttribute('aria-hidden');
 			if (hidden === 'false') {

site/src/index.html

@@ -42,19 +42,6 @@
 	<script async type="module" src="components/rec-filtercalculator/rec-filtercalculator.js"></script>
 	<script async type="module" src="../../node_modules/@lion/tabs/lion-tabs.js"></script>
 
-	<script>
-		// Don't download inert polyfill if it is not needed
-		if (!HTMLElement.prototype.hasOwnProperty('inert')) {
-			var sc = document.createElement('script');
-			sc.src = './inert.esm.js';
-			sc.type = 'module';
-			sc.async = true;
-
-			document.getElementsByTagName('head')[0].appendChild(sc)
-		}
-	</script>
-
-
 	<link rel="stylesheet" href="styles/index.css">
 	<link rel="stylesheet" href="styles/pushable.css">