1147 Operator: get rid of javax.mail dependency

[eparovyshnaya]

• both interface lic.email, implementation lic.mail and test lic.mail.tests bundles are deleted
• lic.mail.feature is deleted, all references cleaned up
• releng aggregator put into accordance with the removals
• dependency removed from targets

[codecov]

Codecov Report

Merging #1149 (ebae55f) into master (82c8b45) will increase coverage by 0.11%.
The diff coverage is 0.00%.

@@             Coverage Diff              @@
##             master    #1149      +/-   ##
============================================
+ Coverage     33.57%   33.69%   +0.11%     
  Complexity      359      359              
============================================
  Files          1161     1158       -3     
  Lines         25743    25589     -154     
  Branches       1592     1585       -7     
============================================
- Hits           8644     8622      -22     
+ Misses        16579    16447     -132     
  Partials        520      520              

Impacted Files	Coverage Δ
...passage/lic/equinox/access/ConsoleInteraction.java	0.00% <ø> (ø)
.../dashboard/ui/wizards/IssueLicenseDetailsPage.java	0.00% <0.00%> (ø)
...e/loc/dashboard/ui/wizards/IssueLicenseWizard.java	0.00% <0.00%> (ø)
...rg/eclipse/passage/lic/bc/BcResidentSecretKey.java	95.65% <0.00%> (+4.34%)	⬆️

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[ruspl-afed]

both interface lic.email, implementation lic.mail and test lic.mail.tests bundles are deleted

I do not see all the annonced deletions in the PR.
Perhaps, we could keep the interface lic.email but remove only lic.mail implementation (to avoid major version increase).
Since we plan a lot of changes next year, I think we can postpone the interface removal

[ruspl-afed]

Let's restore API bundle for this release

[ruspl-afed]

LGTM