BIND 10 #2577: use generic deleteZone() to cancel addZone() in b10-loadzone

[BIND 10 Development]

#2577: use generic deleteZone() to cancel addZone() in b10-loadzone
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                   Reporter:         |                 Owner:
  jinmei                             |                Status:  new
                       Type:  task   |             Milestone:  New Tasks
                   Priority:         |              Keywords:
  medium                             |             Sensitive:  0
                  Component:         |           Sub-Project:  DNS
  loadzone                           |  Estimated Difficulty:  0
               CVSS Scoring:         |           Total Hours:  0
            Defect Severity:  N/A    |
Feature Depending on Ticket:         |
  loadzone-ng                        |
        Add Hours to Ticket:  0      |
                  Internal?:  0      |
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 We should use the added API in #2576 in b10-loadzone to cancel
 adding a new zone when loading fails (it currently hardcodes
 sqlite3-specific workaround).

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Ticket URL: <http://bind10.isc.org/ticket/2577>
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BIND 10 Development