BOOLEAN
CmpRemoveSubKey(
      PHHIVE Hive,
      HCELL_INDEX ParentKey,
      HCELL_INDEX TargetKey
  );

Routine Description:

    Remove the subkey TargetKey refers to from ParentKey's list.

    NOTE:   Assumes that caller has marked relevent cells dirty,
            see CmpMarkIndexDirty.

Arguments:

    Hive - pointer to hive control structure for hive of interest

    ParentKey - key from whose subkey list delete is to be performed

    TargetKey - key being deleted

Return Value:

    TRUE - it worked, FALSE - it didn't, some resource problem