dictDestroy  - destroy dictionary.
       #include <util/dict.h>
       void dictDestroy(dictCtx dict);
       dict - dictionary to destroy
       Release all resources used by <dict>.
       MT-Level: Safe for unique <dict>.
       None.
       dictDestroy(3),   dictCleanup(3),   dictReleaseLock(3),  dictRemove(3),
       dictNext(3),   dictCreate(3),   dictSetValue(3),    dictModifyValue(3),
       dictSearch