perf: remove cache from store(iavl)

[dudong2]

Description

• remove iavl cache and iavl cache manager
  closes: Evaluation of Datastore Caching changes #581

Motivation and context

Unlike cosmos-sdk, lbm-sdk uses fastcache in iavl. According to the benchmarking results, the performance was better when the cache was not used. So I decided to roll back.

How has this been tested?

Screenshots (if appropriate):

Checklist:

• I followed the contributing guidelines and code of conduct.
• I have added a relevant changelog to CHANGELOG.md
• I have added tests to cover my changes.
• I have updated the documentation accordingly.
• I have updated API documentation client/docs/swagger-ui/swagger.yaml

[codecov]

Codecov Report

Merging #595 (0b68f82) into main (1bc3aac) will increase coverage by 0.00%.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##             main     #595   +/-   ##
=======================================
  Coverage   60.60%   60.60%           
=======================================
  Files         814      814           
  Lines       94798    94783   -15     
=======================================
- Hits        57448    57445    -3     
+ Misses      34097    34085   -12     
  Partials     3253     3253           

Impacted Files	Coverage Δ
server/mock/store.go	20.21% <ø> (-1.22%)	⬇️
store/types/store.go	56.25% <ø> (ø)
baseapp/options.go	69.91% <100.00%> (+4.07%)	⬆️
simapp/simd/cmd/root.go	80.68% <100.00%> (-0.17%)	⬇️
store/rootmulti/store.go	69.31% <100.00%> (+0.20%)	⬆️
crypto/keys/internal/ecdsa/privkey.go	84.21% <0.00%> (+1.75%)	⬆️

[zemyblue]

Please add changelog to CHANGELOG.md

[zemyblue]

Please remove freecache library in go.mod.

[dudong2]

Please add changelog to CHANGELOG.md

I added it

[dudong2]

Please remove freecache library in go.mod.

I removed 'freecache' from 'go.mod'