Remove hard coded line.

[Aryex]

Summary

Fixed a hardcoded line of code that was added from #400 and was not addressed.

• Added a new option to getWritePipe() and DSWriter() to fix the multiple connection issue. Again, this is not ideal and the code should be refactored.

Additional Reviewers

@alexey-temnikov
@alexr-bq
@jonathanl-bq
@jeremyp-bq

[codecov]

Codecov Report

Merging #406 (4db2247) into main (da8c329) will increase coverage by 0.39%.
The diff coverage is 80.00%.

@@            Coverage Diff             @@
##             main     #406      +/-   ##
==========================================
+ Coverage   86.59%   86.99%   +0.39%     
==========================================
  Files          27       27              
  Lines        1731     1730       -1     
  Branches      110      110              
==========================================
+ Hits         1499     1505       +6     
+ Misses        232      225       -7     

Flag	Coverage Δ
unittests	86.99% <80.00%> (+0.39%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
...spark/datasource/v2/VerticaDatasourceV2Write.scala	77.77% <66.66%> (+7.50%)	⬆️
.../vertica/spark/datasource/core/DSConfigSetup.scala	87.75% <100.00%> (+1.36%)	⬆️
...a/com/vertica/spark/datasource/core/DSWriter.scala	95.45% <100.00%> (ø)

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