Removing cached items from the reclaims returned by upsert

[roryharr]

Problem

Cached accounts index entries are populated in reclaims, but then filtered before reclaiming. This causes needless memory allocations

Summary of Changes

• Do not populate reclaims if items are cached
• Do not filter out cached items from reclaims (as they are no longer present)

Note: This path is unused now as reclaims are never enabled but it will be used with obsolete accounts

Fixes #

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 83.3%. Comparing base (5c9878b) to head (3a2eb16).
Report is 5 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff            @@
##           master    #6837     +/-   ##
=========================================
- Coverage    83.3%    83.3%   -0.1%     
=========================================
  Files         853      853             
  Lines      378266   378258      -8     
=========================================
- Hits       315417   315376     -41     
- Misses      62849    62882     +33     

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[brooksprumo]

Either handle the comment request in this PR or a follow up PR.

[HaoranYi]

nice find. lgtm.