AC-746: Malformed request body or parameters cause "Internal Server Error"

Remove unwanted changes

Author: sumesh-GL

app/code/Magento/Webapi/Controller/Rest/SynchronousRequestProcessor.php

@@ -13,8 +13,6 @@
 use Magento\Framework\App\DeploymentConfig;
 use Magento\Framework\ObjectManagerInterface;
 use Magento\Framework\Config\ConfigOptionsListConstants;
-use Magento\Framework\Phrase;
-use Magento\Framework\Webapi\Exception as WebapiException;
 
 /**
  * REST request processor for synchronous requests
@@ -95,7 +93,6 @@ public function process(\Magento\Framework\Webapi\Rest\Request $request)
          * @var \Magento\Framework\Api\AbstractExtensibleObject $outputData
          */
         $outputData = call_user_func_array([$service, $serviceMethodName], $inputParams);
-
         $outputData = $this->serviceOutputProcessor->process(
             $outputData,
             $serviceClassName,