Remove unused 3rd lib github.com/olekukonko/tablewriter

[little-cui]

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[coveralls]

Coverage decreased (-0.08%) to 74.051% when pulling f3e0256 on little-cui:master into 1453914 on apache:master.

[codecov-io]

Codecov Report

Merging #297 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #297   +/-   ##
=======================================
  Coverage   70.39%   70.39%           
=======================================
  Files          17       17           
  Lines        3455     3455           
=======================================
  Hits         2432     2432           
  Misses        853      853           
  Partials      170      170

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