clean up godocs

[ylil93]

go generated documentation

[codecov]

Codecov Report

Merging #660 into master will increase coverage by <.01%.
The diff coverage is 0%.

@@            Coverage Diff             @@
##           master     #660      +/-   ##
==========================================
+ Coverage   74.26%   74.26%   +<.01%     
==========================================
  Files         104      104              
  Lines       10393    10392       -1     
  Branches     1460     1461       +1     
==========================================
  Hits         7718     7718              
+ Misses       2381     2380       -1     
  Partials      294      294

Impacted Files	Coverage Δ
ydkgen/printer/go/class_constructor_printer.py	14.65% <ø> (+0.18%)	⬆️
ydkgen/printer/go/module_printer.py	23.45% <0%> (-0.6%)	⬇️

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