Cleanup enable_unicode_support config

[darshanasbg]

Proposed changes in this pull request

$subject.

Reverts the changes done with,

• Add config to indicate the unicode support #6142

Related to,

• Have the ability to support non-latin unicode characters for email templates product-is#21235

When should this PR be merged

Immediate

Follow up actions

Merge

• Cleanup code which used to migrate from non-unicode to unicode wso2-extensions/identity-event-handler-notification#297
• Cleanup enable_unicode_support config product-is#22079

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 45.66%. Comparing base (f721c11) to head (b492a3d).
Report is 2 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #6224      +/-   ##
============================================
+ Coverage     45.56%   45.66%   +0.10%     
+ Complexity    14147    14040     -107     
============================================
  Files          1632     1632              
  Lines        102355   100532    -1823     
  Branches      17677    17421     -256     
============================================
- Hits          46640    45911     -729     
+ Misses        48954    47931    -1023     
+ Partials       6761     6690      -71     

Flag	Coverage Δ
unit	28.30% <ø> (+0.06%)	⬆️

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