Remove type assertions in evaluation code

[MilesCranmer]

No description provided.

[coveralls]

Pull Request Test Coverage Report for Build 4845720360

• 1 of 1 (100.0%) changed or added relevant line in 1 file are covered.
• 7 unchanged lines in 4 files lost coverage.
• Overall coverage remained the same at 88.799%

---

Files with Coverage Reduction	New Missed Lines	%
src/EvaluateEquation.jl	1	99.64%
src/InterfaceSymbolicUtils.jl	2	66.67%
src/precompile.jl	2	80.8%
src/SimplifyEquation.jl	2	86.42%

Totals
Change from base Build 4824867612:	0.0%
Covered Lines:	991
Relevant Lines:	1116

---

💛 - Coveralls

[github-actions]

Benchmark Results

	master	8f619d0...	t[master]/t[8f619d0...]
eval/ComplexF32/evaluation	9.65 ± 0.55 ms	9.65 ± 0.56 ms	1
eval/ComplexF64/evaluation	12.2 ± 0.76 ms	12 ± 0.68 ms	1.02
eval/Float32/derivative	17 ± 0.94 ms	17.3 ± 1.1 ms	0.983
eval/Float32/derivative_turbo	18.1 ± 0.79 ms	18.1 ± 0.77 ms	1
eval/Float32/evaluation	3.36 ± 0.25 ms	3.51 ± 0.25 ms	0.957
eval/Float32/evaluation_turbo	0.849 ± 0.051 ms	0.867 ± 0.055 ms	0.98
eval/Float64/derivative	24.1 ± 4.9 ms	24.2 ± 4.9 ms	0.995
eval/Float64/derivative_turbo	26 ± 4.9 ms	25.9 ± 4.9 ms	1.01
eval/Float64/evaluation	4.12 ± 0.29 ms	4.16 ± 0.29 ms	0.991
eval/Float64/evaluation_turbo	1.34 ± 0.064 ms	1.35 ± 0.072 ms	0.992
time_to_load	13 ± 0.16 s	13 ± 0.026 s	0.999
utils/combine_operators/break_sharing	0.0539 ± 0.0031 ms	0.0554 ± 0.0035 ms	0.973
utils/convert/break_sharing	0.0556 ± 0.0078 ms	0.058 ± 0.007 ms	0.959
utils/convert/preserve_sharing	0.229 ± 0.014 ms	0.228 ± 0.013 ms	1
utils/copy/break_sharing	0.0497 ± 0.0026 ms	0.0529 ± 0.005 ms	0.94
utils/copy/preserve_sharing	0.221 ± 0.0058 ms	0.222 ± 0.009 ms	0.995
utils/simplify_tree/break_sharing	0.162 ± 0.016 ms	0.166 ± 0.017 ms	0.972

Benchmark Plots

A plot of the benchmark results have been uploaded as an artifact to the workflow run for this PR.
Go to "Actions"->"Benchmark a pull request"->[the most recent run]->"Artifacts" (at the bottom).

[MilesCranmer]

Not needed as value type is simply ::T now.