Fixed: Also use SSL context callback when manually using Windows CA certs

--HG--
branch : develop

code/nel/src/gui/curl_certificates.cpp

@@ -88,12 +88,9 @@ namespace NLGUI
 				addCertificatesFrom("CA");
 				addCertificatesFrom("AuthRoot");
 				addCertificatesFrom("ROOT");
+#endif
 
-				// we manually loaded native CA Certs, don't need to use custom certificates
-				isUsingOpenSSLBackend = false;
-#else
 				isUsingOpenSSLBackend = true;
-#endif
 			}
 			else
 			{