remove warning and danger Button variants from docs (#1158)

Author: jasonbasuil

spec/__snapshots__/Storyshots.test.js.snap

@@ -3586,7 +3586,7 @@ Array [
 ]
 `;
 
-exports[`Storyshots Components/Button Danger 1`] = `
+exports[`Storyshots Components/Button Danger DEPRECATED 1`] = `
 Array [
   <button
     className="Button btn btn-danger btn-sm"
@@ -4772,7 +4772,7 @@ Array [
 ]
 `;
 
-exports[`Storyshots Components/Button Warning 1`] = `
+exports[`Storyshots Components/Button Warning DEPRECATED 1`] = `
 Array [
   <button
     className="Button btn btn-warning btn-sm"

src/Button/Button.mdx

@@ -44,6 +44,10 @@ import * as ComponentStories from './Button.stories';
 	- Space is limited (e.g. too small for text alone)
 	- The icon is standardized or represents an object with a strong physical analog or visual attribute (e.g. floppy disk (Save), pencil (Edit))
 
+### Deprecated variants
+
+- The `danger` and `warning` variants are deprecated and will be removed in the next major version.
+
 ## Button vs. Link distinction
 
 - Buttons are used for actions that affect the application. Clicking them causes changes on the frontend or backend.
@@ -60,18 +64,6 @@ import * as ComponentStories from './Button.stories';
 
 <Canvas of={ComponentStories.Primary} />
 
-### Danger
-
-- Used to indicate destructive actions.
-
-<Canvas of={ComponentStories.Danger} />
-
-### Warning
-
-- Currently only used for managing project drafts, but could potentially be used to indicate actions that need require special attention.
-
-<Canvas of={ComponentStories.Warning} />
-
 ### Transparent
 
 <Canvas of={ComponentStories.Transparent} />

src/Button/Button.stories.tsx

@@ -97,7 +97,7 @@ export const Primary = () => (
   </>
 );
 
-export const Danger = () => (
+export const DangerDEPRECATED = () => (
   <>
     <Button
       leadingIcon={faFileAlt as IconDefinition}
@@ -173,7 +173,7 @@ export const Danger = () => (
   </>
 );
 
-export const Warning = () => (
+export const WarningDEPRECATED = () => (
   <>
     <Button
       leadingIcon={faFileAlt as IconDefinition}