Avoid seek operation when current kv is deleted
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                 Key: HBASE-4585
                 URL: https://issues.apache.org/jira/browse/HBASE-4585
             Project: HBase
          Issue Type: Improvement
            Reporter: Liyin Tang
            Assignee: Liyin Tang


When the current kv is deleted during the matching in the ScanQueryMatcher, 
currently the matcher will return skip and continue to seek.

Actually, if the current kv is deleted because of family deleted or column 
deleted, the matcher should seek to next col.
If the current kv is deleted because of version deleted, the matcher should 
just return skip.



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