remove deprecated button from stories (#48909)

frontend/src/metabase/core/components/Button/Button.stories.tsx

-import type { StoryFn } from "@storybook/react";
-
-import Button, { type ButtonProps } from "./Button";
-
-export default {
-  title: "Core/Button",
-  component: Button,
-};
-
-const Template: StoryFn<ButtonProps> = args => {
-  return <Button {...args} />;
-};
-
-export const Default = {
-  render: Template,
-
-  args: {
-    children: "Default",
-  },
-};
-
-export const Primary = {
-  render: Template,
-
-  args: {
-    primary: true,
-    children: "Primary",
-  },
-};
-
-export const WithIcon = {
-  render: Template,
-
-  args: {
-    icon: "chevrondown",
-  },
-};
-
-export const OnlyText = {
-  render: Template,
-
-  args: {
-    onlyText: true,
-    children: "Click Me",
-  },
-};