Remove custom validation

[VijayanB]

Use framework provided validation.

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[codecov]

Codecov Report

Merging #74 (7dde9b5) into main (3e8cd56) will increase coverage by 0.67%.
The diff coverage is n/a.

❗ Current head 7dde9b5 differs from pull request most recent head 2ae6670. Consider uploading reports for the commit 2ae6670 to get more accurate results

@@            Coverage Diff             @@
##             main      #74      +/-   ##
==========================================
+ Coverage   64.94%   65.61%   +0.67%     
==========================================
  Files          30       30              
  Lines        1566     1550      -16     
==========================================
  Hits         1017     1017              
+ Misses        445      430      -15     
+ Partials      104      103       -1     

Flag	Coverage Δ
odfe-cli	65.61% <ø> (+0.67%)	⬆️

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

Impacted Files	Coverage Δ
commands/ad_delete.go	21.05% <ø> (+2.87%)	⬆️
commands/ad_get.go	7.50% <ø> (+0.52%)	⬆️
commands/ad_start_stop.go	20.00% <ø> (+1.81%)	⬆️
commands/ad_update.go	23.52% <ø> (+4.48%)	⬆️
commands/profile.go	53.10% <ø> (+1.07%)	⬆️