Use the same release build flags for all platforms for simplicity and performance despite slow Windows GitHub action runners.

Cargo.toml

@@ -19,7 +19,7 @@ exclude = [
 ]
 
 # https://doc.rust-lang.org/cargo/reference/profiles.html
-[profile.release.'cfg(not(windows))']
+[profile.release]
 panic = "unwind"
 opt-level = 3
 # PGO doesn't work with LTO: https://github.com/llvm/llvm-project/issues/57501
@@ -27,14 +27,6 @@ opt-level = 3
 lto = true
 codegen-units = 1
 
-# Release builds for Windows on GitHub action runners are much slower, thus
-# increase the parallel codegen units.
-[profile.release.'cfg(windows)']
-panic = "unwind"
-opt-level = 3
-lto = true
-codegen-units = 16
-
 # Workaround for https://github.com/gwenn/lemon-rs/issues/78. sqlite3-parser
 # requires 1+MB stack frames to parse trivial SQL statements, which is larger
 # than Window's default stack size of 1MB. This is due to the rust compiler not