Moved is_filled_array() to both dba classes and named it is_result().

Please see ticket #2390 for full discussion.

Signed-off-by: Roland Haeder <roland@mxchange.org>

boot.php

@@ -2202,7 +2202,3 @@ function argv($x) {
 
 	return '';
 }
-
-function is_filled_array ($array) {
-	return (is_array($array) && count($array) > 0);
-}