[query] Remove query conversion lru cache

[benraskin92]

Resolves the panic in #1542

[prateek]

LGTM, might have to rebase

[codecov]

Codecov Report

Merging #1546 into master will increase coverage by <.1%.
The diff coverage is 100%.

@@           Coverage Diff            @@
##           master   #1546     +/-   ##
========================================
+ Coverage    71.7%   71.7%   +<.1%     
========================================
  Files         948     947      -1     
  Lines       78066   77981     -85     
========================================
- Hits        55986   55947     -39     
+ Misses      18430   18391     -39     
+ Partials     3650    3643      -7

Flag	Coverage Δ
#aggregator	82.3% <ø> (ø)	⬆️
#cluster	85.7% <ø> (ø)	⬆️
#collector	63.7% <ø> (ø)	⬆️
#dbnode	79.9% <ø> (ø)	⬆️
#m3em	73.2% <ø> (ø)	⬆️
#m3ninx	73.9% <ø> (ø)	⬆️
#m3nsch	51.1% <ø> (ø)	⬆️
#metrics	17.5% <ø> (ø)	⬆️
#msg	75% <ø> (+0.1%)	⬆️
#query	66.5% <100%> (-0.1%)	⬇️
#x	85.7% <ø> (ø)	⬆️

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