drop vendor licenses

[dprotaso]

Part of knative/community#1441

/assign @cardil

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 84.07%. Comparing base (cbeb090) to head (4e91d53).
Report is 11 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #15050      +/-   ##
==========================================
- Coverage   84.10%   84.07%   -0.03%     
==========================================
  Files         213      213              
  Lines       16796    16796              
==========================================
- Hits        14126    14122       -4     
- Misses       2318     2322       +4     
  Partials      352      352              

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[knative-prow]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: cardil, dprotaso

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Needs approval from an approver in each of these files:

• OWNERS [dprotaso]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment