[9.0.0 Release Deprecation] Remove deprecated Remove deprecated java.completable-future-jdk8 instrumentation

[obenkenobi]

Overview

Do not merge until after January 1 and the next targeted release is 9.0.0.

This is a copy of Jason's PR to merge into main:

#1640

Related Github Issue

#1624

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 70.27%. Comparing base (9f144fd) to head (0b4e894).
⚠️ Report is 1743 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #2562      +/-   ##
============================================
- Coverage     70.70%   70.27%   -0.43%     
- Complexity     9948    10118     +170     
============================================
  Files           827      855      +28     
  Lines         39931    41108    +1177     
  Branches       6031     6230     +199     
============================================
+ Hits          28232    28890     +658     
- Misses         8981     9403     +422     
- Partials       2718     2815      +97     

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