[Master] Remove implementation_status flag when updating APIs

[dulithsenanayake]

When migrating from 2.6.0 to the latest versions, we can see the implementation_status flag in the registry. But in the latest versions, we only have production, sandbox and no API endpoint for prototype. So if the user needs to proceed using HTTP/REST endpoints or any other endpoint after the migration, in the next API update call we need to remove the implementation_status flag which used to identify prototype endpoints. This PR removes the implementation_status flag when updating APIs.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 47.68%. Comparing base (e94b4fd) to head (ebad075).
Report is 3 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff              @@
##             master   #12356      +/-   ##
============================================
+ Coverage     47.62%   47.68%   +0.05%     
+ Complexity     4192     4185       -7     
============================================
  Files          1840     1840              
  Lines        136532   136535       +3     
  Branches      19767    19768       +1     
============================================
+ Hits          65019    65101      +82     
+ Misses        63857    63760      -97     
- Partials       7656     7674      +18     

Flag	Coverage Δ
integration_tests	42.43% <100.00%> (+0.01%)	⬆️
unit_tests	20.16% <0.00%> (-0.02%)	⬇️

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

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