Remove extra logging per code review

Author: Brent Jameson

app/code/Magento/Contact/Controller/Index/Post.php

@@ -79,7 +79,6 @@ public function execute()
             $this->messageManager->addErrorMessage($e->getMessage());
             $this->getDataPersistor()->set('contact_us', $this->getRequest()->getParams());
         } catch (\Exception $e) {
-            $this->logger->addError('An error occurred in Controller\\Index\\Post: ' . $e->getMessage());
             $this->logger->critical($e);
             $this->messageManager->addErrorMessage(
                 __('An error occurred while processing your form. Please try again later.')