Update README.md

Author: mevdschee

README.md

@@ -31,10 +31,6 @@ There are also proof-of-concept ports of this script that only support basic RES
   - PostGIS 2.0 or higher for spatial features in PostgreSQL 9.1 or higher
   - SQL Server 2012 or higher (2017 for Linux support)
 
-## Known issues
-
-- Seeing integers as strings? Make sure to enable the `nd_pdo_mysql` extension and disable `pdo_mysql`.
-
 ## Installation
 
 This is a single file application! Upload "`api.php`" somewhere and enjoy!