[ros-diffs] [ion] 26817: - Implement NtDeleteKey as a simpler wrapper around CmDeleteKey. - Add cmkeydel.c to handle key deletion. Will proably move to cmkcbncb.c later. Implemented CmpMarkKeyDirty, CmpFreeKeyBody, CmpFreeKeyByCell. - Implement CmpMarkIndexDirty, CmpRemoveSubKey in cmindex.c. - Implement CmDeleteKey (which uses CmpFreeKeyByCell for all the work). - Remove CmiRemoveKeyFromList, CmiRemoveSubKey, CmiRemoveKeyFromHashTable, CmiSaveTempHive.