[t:4501], fix test as result of changes for #4472

// ENVDIR is defined in the Makefile

#if TOKUDB

#define EXTRA_LOCK_NEEDED 2

#else

#define EXTRA_LOCK_NEEDED 0

#endif

#define EXTRA_LOCK_NEEDED 0 // pre #4472, TokuDB needed some extra locks due to grabbing of directory lock for some operations

static void make_db (int n_locks) {

    DB_ENV *env;