Chore: Remove unused files (#57515)

public/app/features/dashboard/components/DashboardSettings/DashboardSettingsHeader.tsx

@@ -1,33 +0,0 @@
-import React from 'react';
-
-import { config } from '@grafana/runtime';
-import { Icon, HorizontalGroup } from '@grafana/ui';
-
-type Props = {
-  title: string;
-  onGoBack: () => void;
-  isEditing: boolean;
-};
-
-export const DashboardSettingsHeader: React.FC<Props> = ({ onGoBack, isEditing, title }) => {
-  if (config.featureToggles.topnav) {
-    return null;
-  }
-
-  return (
-    <div className="dashboard-settings__header">
-      <HorizontalGroup align="center" justify="space-between">
-        <h3>
-          <span onClick={onGoBack} className={isEditing ? 'pointer' : ''}>
-            {title}
-          </span>
-          {isEditing && (
-            <span>
-              <Icon name="angle-right" /> Edit
-            </span>
-          )}
-        </h3>
-      </HorizontalGroup>
-    </div>
-  );
-};

public/app/features/dashboard/components/PanelEditor/index.ts

@@ -1 +0,0 @@
-export { PanelEditor } from './PanelEditor';