Loop Refactor 4/N - Remove Old Evaluation Loop

[awaelchli]

What does this PR do?

Removes the old evaluation loop file.
The new loop was already merged in #7990.

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[codecov]

Codecov Report

Merging #8056 (1f3b4f8) into master (92a78d5) will decrease coverage by 5%.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master   #8056    +/-   ##
=======================================
- Coverage      92%     87%    -5%     
=======================================
  Files         210     210            
  Lines       13579   13579            
=======================================
- Hits        12452   11810   -642     
- Misses       1127    1769   +642     

[tchaton]

LGMT !