Revert "Reuse existing EVM instance in interop calls (#1731)"

[codchen]

This reverts commit f285e6f.

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Testing performed to validate your change

[codecov]

Codecov Report

Attention: Patch coverage is 53.84615% with 12 lines in your changes missing coverage. Please review.

Project coverage is 61.37%. Comparing base (aefdcf8) to head (aa36cc0).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1780      +/-   ##
==========================================
- Coverage   61.47%   61.37%   -0.10%     
==========================================
  Files         257      256       -1     
  Lines       22284    22244      -40     
==========================================
- Hits        13698    13652      -46     
- Misses       7629     7635       +6     
  Partials      957      957              

Files	Coverage Δ
evmrpc/simulate.go	64.72% <100.00%> (-0.51%)	⬇️
x/evm/ante/fee.go	64.00% <ø> (-0.48%)	⬇️
x/evm/keeper/msg_server.go	76.63% <ø> (-0.10%)	⬇️
x/evm/state/statedb.go	49.01% <0.00%> (-3.32%)	⬇️
x/evm/keeper/evm.go	66.66% <54.16%> (+0.21%)	⬆️

... and 2 files with indirect coverage changes