Revert "fix: load images (#174)" (#188)

This reverts commit bf99fd6.

Author: Rich-Harris

Diff for: content/tutorial/01-svelte/07-lifecycle/01-onmount/README.md

@@ -2,6 +2,8 @@
 title: onMount
 ---
 
+> The images in this exercise don't currently work. You can switch to the old tutorial instead: https://svelte.dev/tutorial/onmount
+
 Every component has a _lifecycle_ that starts when it is created, and ends when it is destroyed. There are a handful of functions that allow you to run code at key moments during that lifecycle.
 
 The one you'll use most frequently is `onMount`, which runs after the component is first rendered to the DOM.

Diff for: content/tutorial/01-svelte/07-lifecycle/01-onmount/app-a/src/lib/App.svelte

@@ -8,7 +8,6 @@
 	{#each photos as photo}
 		<figure>
 			<img
-				crossorigin="anonymous"
 				src={photo.thumbnailUrl}
 				alt={photo.title}
 			/>

Diff for: content/tutorial/01-svelte/07-lifecycle/01-onmount/app-b/src/lib/App.svelte

@@ -17,7 +17,6 @@
 	{#each photos as photo}
 		<figure>
 			<img
-				crossorigin="anonymous"
 				src={photo.thumbnailUrl}
 				alt={photo.title}
 			/>