Remove profile from Cargo.toml

To avoid warnings in rust-lang/rust.

Author: Kobzol

Cargo.toml

@@ -71,10 +71,3 @@ harness = false
 [[test]]
 name = "dogfood"
 harness = false
-
-# quine-mc_cluskey makes up a significant part of the runtime in dogfood
-# due to the number of conditions in the clippy_lints crate
-# and enabling optimizations for that specific dependency helps a bit
-# without increasing total build times.
-[profile.dev.package.quine-mc_cluskey]
-opt-level = 3