fix: CI failture due to Default React import (apache#29110)

Author: justinpark

superset-frontend/src/explore/components/controls/DateFilterControl/components/CurrentCalendarFrame.tsx

@@ -16,7 +16,7 @@
  * specific language governing permissions and limitations
  * under the License.
  */
-import React, { useEffect } from 'react';
+import { useEffect } from 'react';
 import { t } from '@superset-ui/core';
 import { Radio } from 'src/components/Radio';
 import {

superset-frontend/src/explore/components/controls/DateFilterControl/tests/CurrentCalendarFrame.test.tsx

@@ -16,7 +16,6 @@
  * specific language governing permissions and limitations
  * under the License.
  */
-import React from 'react';
 import { render } from '@testing-library/react';
 import '@testing-library/jest-dom/extend-expect'; // For advanced DOM assertions
 import { CurrentCalendarFrame } from '../components/CurrentCalendarFrame';