Remove unused "Example" (cloudflare#22624)

"Example:" string did not contain an example for the scale down fit. None of the other fits contained an example either.

Author: perabjoth

src/content/partials/images/fit.mdx

@@ -7,7 +7,7 @@ import { Tabs, TabItem } from "~/components";
 Affects interpretation of `width` and `height`. All resizing modes preserve aspect ratio. Used as a string in Workers integration. Available modes are:
 
 - `scale-down`\
-  Similar to `contain`, but the image is never enlarged. If the image is larger than given `width` or `height`, it will be resized. Otherwise its original size will be kept. Example:
+  Similar to `contain`, but the image is never enlarged. If the image is larger than given `width` or `height`, it will be resized. Otherwise its original size will be kept.
 - `contain`\
   Image will be resized (shrunk or enlarged) to be as large as possible within the given `width` or `height` while preserving the aspect ratio. If you only provide a single dimension (for example, only `width`), the image will be shrunk or enlarged to exactly match that dimension.
 - `cover`\