[polaris.shopify.com] Fix broken images (Shopify#11741)

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### WHY are these changes introduced?

Fixes some broken images in the Guidance for `Modal` and `Setting
toggle`.

polaris.shopify.com/content/components/deprecated/setting-toggle.mdx

@@ -65,22 +65,6 @@ The setting toggle component should only be used when:
 
 If the setting is dependent on other settings, uses progressive disclosure, or has options that are not a simple “On”/“Off”, use a different UI element such as [Checkbox](https://polaris.shopify.com/components/selection-and-input/checkbox) or [Radio button](https://polaris.shopify.com/components/selection-and-input/radio-button).
 
-<DoDont>
-
-#### Do
-
-Only include the actions Turn on/ Turn off.
-
-![Setting toggle do](/images/components/deprecated/setting-toggle/Do.png)
-
-#### Don’t
-
-Don't include additional settings or inputs.
-
-![Setting toggle dont](/images/components/deprecated/setting-toggle/Dont.png)
-
-</DoDont>
-
 ---
 
 ## Content guidelines

polaris.shopify.com/content/components/internal-only/modal.mdx

@@ -206,13 +206,13 @@ Tertiary actions should:
 
 #### Do
 
-![Screenshot of modal with a plain button as a tertiary action](/images/components/internal-only/modal/[email protected])
+![Screenshot of modal with a plain button as a tertiary action](/images/components/deprecated/modal/[email protected])
 
 Use a plain button for a tertiary action if needed
 
 #### Don’t
 
-![Screenshot of modal with a destructive button as a tertiary action](/images/components/internal-only/modal/[email protected])
+![Screenshot of modal with a destructive button as a tertiary action](/images/components/deprecated/modal/[email protected])
 
 Use a tertiary action for a destructive action