Revert "Adding AntdThemeWrapper to ProviderWrapper for testing purposes"

This reverts commit 1ab8677.

superset-frontend/spec/helpers/ProviderWrapper.tsx

@@ -20,23 +20,20 @@
 import { ThemeProvider } from '@superset-ui/core';
 import { BrowserRouter as Router, Route } from 'react-router-dom';
 import { QueryParamProvider } from 'use-query-params';
-import { AntdThemeProvider } from 'src/components/AntdThemeProvider';
 
 export function ProviderWrapper(props: any) {
   const { children, theme } = props;
 
   return (
     <ThemeProvider theme={theme}>
-      <AntdThemeProvider>
-        <Router>
-          <QueryParamProvider
-            ReactRouterRoute={Route}
-            stringifyOptions={{ encode: false }}
-          >
-            {children}
-          </QueryParamProvider>
-        </Router>
-      </AntdThemeProvider>
+      <Router>
+        <QueryParamProvider
+          ReactRouterRoute={Route}
+          stringifyOptions={{ encode: false }}
+        >
+          {children}
+        </QueryParamProvider>
+      </Router>
     </ThemeProvider>
   );
 }