Revert "Improve the QueryException error response"

This reverts commit f1f9856.

Fix dodgy revert

Author: simonhamp

src/Http/Controllers/ImportController.php

@@ -77,7 +77,7 @@ public function import(NovaRequest $request, $file)
         try {
             $this->importer->import($this->getFilePath($file), null, 'Csv');
         } catch (QueryException $e) {
-            return response()->json(['result' => 'error', 'message' => $e->getPrevious()->errorInfo[2]], 422);
+            throw new \Exception($e->getPrevious()->errorInfo[2]);
         } catch (ImportException $e) {
             $this->responseError($e->getMessage());
         } catch (NoTypeDetectedException $e) {