Minor refactoring to use the existing getArgumentPosition method

[jlerbsc]

Fix checkstyle issue
Removal of an unnecessary private method that searches for the position of an argument

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (aadef00) 51.665% compared to head (c241695) 51.665%.
Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff            @@
##            master     #4306   +/-   ##
=========================================
  Coverage   51.665%   51.665%           
=========================================
  Files          497       497           
  Lines        28288     28288           
  Branches      4895      4895           
=========================================
  Hits         14615     14615           
  Misses       11649     11649           
  Partials      2024      2024           

Flag	Coverage Δ
AlsoSlowTests	51.665% <ø> (ø)
javaparser-core	51.665% <ø> (ø)
javaparser-symbol-solver	51.665% <ø> (ø)
jdk-10	51.661% <ø> (ø)
jdk-11	51.661% <ø> (ø)
jdk-12	51.661% <ø> (ø)
jdk-13	51.661% <ø> (ø)
jdk-14	51.661% <ø> (ø)
jdk-15	51.661% <ø> (ø)
jdk-16	51.661% <ø> (ø)
jdk-17	51.661% <ø> (ø)
jdk-18	51.661% <ø> (ø)
jdk-8	51.659% <ø> (ø)
jdk-9	51.661% <ø> (ø)
macos-latest	51.657% <ø> (ø)
ubuntu-latest	51.657% <ø> (ø)
windows-latest	51.643% <ø> (ø)

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Files	Coverage Δ
...main/java/com/github/javaparser/HasParentNode.java	90.909% <ø> (ø)

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