Remove Extra Keep Alive set in ConnectionStart

[anrossi]

Description

QuicConnStart sets the keep alive timer, when a client creates a new connection. However, this timer set is unnecessary because QuicConnDrainOperations will update the keep alive timer every time, for example, when the initial packet is set.

Testing

Keep alives are already tested, so no new tests are needed.

Documentation

Nope.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 86.99%. Comparing base (2c81e07) to head (fbc0c1f).
Report is 11 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4849      +/-   ##
==========================================
- Coverage   87.30%   86.99%   -0.31%     
==========================================
  Files          56       56              
  Lines       17634    17630       -4     
==========================================
- Hits        15396    15338      -58     
- Misses       2238     2292      +54     

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