[aggregator] Remove repeated text

[ChrisChinchilla]

Two code comments repeat unneeded text

[codecov[bot]]

Codecov Report

Merging #3222 (2093b91) into master (0ab7b10) will increase coverage by 14.8%. The diff coverage is n/a.

:exclamation: Current head 2093b91 differs from pull request most recent head b8fb9db. Consider uploading reports for the commit b8fb9db to get more accurate results

@@            Coverage Diff             @@
##           master    #3222      +/-   ##
==========================================
+ Coverage    57.5%    72.3%   +14.8%     
==========================================
  Files         551     1094     +543     
  Lines       64031   101127   +37096     
==========================================
+ Hits        36824    73201   +36377     
+ Misses      24012    22865    -1147     
- Partials     3195     5061    +1866     

Flag	Coverage Δ
aggregator	75.8% <ø> (+18.6%)	:arrow_up:
cluster	84.9% <ø> (∅)
collector	84.3% <ø> (+25.8%)	:arrow_up:
dbnode	78.8% <ø> (+16.4%)	:arrow_up:
m3em	74.4% <ø> (+27.9%)	:arrow_up:
m3ninx	73.3% <ø> (?)
metrics	20.0% <ø> (+0.2%)	:arrow_up:
msg	74.0% <ø> (-0.4%)	:arrow_down:
query	67.3% <ø> (?)
x	80.2% <ø> (?)

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