Remove enum check from remove contract

[janezpodhostnik]

The removal is done here: onflow/cadence#3402

context: https://dapperlabs.slack.com/archives/CUU2KQL4A/p1714745625179679?thread_ts=1714653448.424269&cid=CUU2KQL4A

❗️DO NOT MERGE - this is special-case change to update EVM contract on previewnet only.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 41.72%. Comparing base (0658967) to head (4a9aefc).

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #6053   +/-   ##
=======================================
  Coverage   41.72%   41.72%           
=======================================
  Files        1962     1962           
  Lines      138159   138159           
=======================================
+ Hits        57640    57647    +7     
+ Misses      74531    74525    -6     
+ Partials     5988     5987    -1     

Flag	Coverage Δ
unittests	41.72% <ø> (+<0.01%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.