remove unused import by mayelena · Pull Request #1821 · apache/hugegraph

@@             Coverage Diff              @@
##             master    #1821      +/-   ##
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+ Coverage     66.56%   70.91%   +4.35%     
- Complexity      978      982       +4     
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  Files           446      446              
  Lines         37902    37902              
  Branches       5398     5398              
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+ Hits          25230    26879    +1649     
+ Misses         9967     8293    -1674     
- Partials       2705     2730      +25