Fix warnings at compile time

[Bumblebee00]

These warnings:

Info Given SymbolicIntegration was explicitly requested, output will be shown live 
WARNING: method definition for TowerOfDifferentialFields at /Users/mmm/.julia/dev/SymbolicIntegration.jl_official/src/methods/risch/frontend.jl:664 declares type variable F but does not use it.
WARNING: Method definition expinti(SymbolicUtils.Symbolic{var"#s207"} where var"#s207"<:Real) in module Symbolics at /Users/mmm/.julia/packages/Symbolics/xD5Pj/src/wrapper-types.jl:168 overwritten in module SymbolicIntegration on the same line (check for duplicate calls to `include`).
ERROR: Method overwriting is not permitted during Module precompilation. Use `__precompile__(false)` to opt-out of precompilation.
  ? SymbolicIntegration

Should be removed with this pr

[codecov-commenter]

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Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 22.54%. Comparing base (40a5b20) to head (e098325).
⚠️ Report is 1 commits behind head on main.
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Additional details and impacted files

@@            Coverage Diff             @@
##             main      #51      +/-   ##
==========================================
- Coverage   22.63%   22.54%   -0.10%     
==========================================
  Files          20       20              
  Lines        4131     4130       -1     
==========================================
- Hits          935      931       -4     
- Misses       3196     3199       +3     

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