remove unused assignment

Application/Controller/Admin/ManufacturerInfoLongdesc.php

@@ -104,7 +104,7 @@ class ManufacturerInfoLongdesc extends AdminDetailsController
      */
     public function d3GetLongdescParamValue(Manufacturer $oManufacturer): string
     {
-        return (string) $aParams = Registry::getRequest()->getRequestEscapedParameter("editval")[$oManufacturer->getD3LongDescTableColumnName()];
+        return (string) Registry::getRequest()->getRequestEscapedParameter("editval")['oxmanufacturers__d3description'];
     }
 
     /**