BIND 10 #639: remove empty code in lib/cache

[BIND 10 Development]

#639: remove empty code in lib/cache
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                   Reporter:         |                 Owner:  zhanglikun
  jinmei                             |                Status:  assigned
                       Type:         |             Milestone:
  defect                             |  Sprint-20110614
                   Priority:  minor  |            Resolution:
                  Component:         |             Sensitive:  0
  resolver                           |           Sub-Project:  DNS
                   Keywords:         |  Estimated Difficulty:  0.0
            Defect Severity:  N/A    |           Total Hours:  0
Feature Depending on Ticket:         |
        Add Hours to Ticket:  0      |
                  Internal?:  0      |
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Changes (by zhanglikun):

 * owner:   => zhanglikun
 * status:  new => assigned


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Ticket URL: <http://bind10.isc.org/ticket/639#comment:4>
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