Drop debugging from versioncheck.php

Change-Id: I7307d2be0d5d8c49e385a5f8cd907d1405bade97

test/versioncheck.php

@@ -79,8 +79,6 @@ while (!feof($p)) {
 }
 pclose($p);
 
-var_dump($updates);
-
 // Find any version.php or upgrade.php files that have changed
 foreach (array_keys($updates) as $dir) {
     validate_version("$dir/version.php", "$dir/db/upgrade.php");