feat: Remove unless necessary warning in alert (#47633)

components/alert/Alert.tsx

@@ -42,10 +42,6 @@ export interface AlertProps {
   rootClassName?: string;
   banner?: boolean;
   icon?: React.ReactNode;
-  /**
-   * Custom closeIcon
-   * @deprecated please use `closable.closeIcon` instead.
-   */
   closeIcon?: React.ReactNode;
   action?: React.ReactNode;
   onMouseEnter?: React.MouseEventHandler<HTMLDivElement>;
@@ -131,7 +127,6 @@ const Alert: React.FC<AlertProps> = (props) => {
   if (process.env.NODE_ENV !== 'production') {
     const warning = devUseWarning('Alert');
     warning.deprecated(!closeText, 'closeText', 'closable.closeIcon');
-    warning.deprecated(!closeIcon, 'closeIcon', 'closable.closeIcon');
   }
 
   const ref = React.useRef<HTMLDivElement>(null);

components/alert/__tests__/index.test.tsx

@@ -191,20 +191,6 @@ describe('Alert', () => {
 
     expect(container.querySelector('.ant-alert-close-icon')?.textContent).toBe('close');
 
-    warnSpy.mockRestore();
-  });
-  it('should warning when using closeIcon', () => {
-    resetWarned();
-    const warnSpy = jest.spyOn(console, 'error').mockImplementation(() => {});
-
-    const { container } = render(<Alert closeIcon="close" />);
-
-    expect(warnSpy).toHaveBeenCalledWith(
-      `Warning: [antd: Alert] \`closeIcon\` is deprecated. Please use \`closable.closeIcon\` instead.`,
-    );
-
-    expect(container.querySelector('.ant-alert-close-icon')?.textContent).toBe('close');
-
     warnSpy.mockRestore();
   });
 });