Remove cargo make benchmarks

[futursolo]

Description

After #2330, benchmark related code does not compile and trips clippy.
I think @voidpumpkin mentioned that this piece of code didn't work as expected before #2330 anyways.
I feel it's easier to solve this by removing the old benchmark as now Yew has a different way to benchmark.

Checklist

• I have run cargo make pr-flow (No, Clippy crash (version 1.59 on macOS) rust-lang/rust-clippy#8470)
• I have reviewed my own code
• I have added tests

[github-actions]

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[voidpumpkin]

I dont really have an opinion regarding this. I see we had some benches for diffing but idk if we ever looked at/used those.

[hamza1311]

I agree that we should pull it out. Benchmarks can be added in afterwards where needed