never skip C++ compile on clippy, causing issues downstream

close Rust-GPU/cargo-gpu#140

Author: Firestar99

spirv-tools-sys/build.rs

@@ -74,11 +74,6 @@ fn val(build: &mut Build) {
 }
 
 fn main() {
-    // skip compiling C++ code when running clippy
-    if std::env::var("CLIPPY_ARGS").is_ok() {
-        return;
-    }
-
     let use_installed = std::env::var("CARGO_FEATURE_USE_INSTALLED_TOOLS").is_ok();
     let use_compiled = std::env::var("CARGO_FEATURE_USE_COMPILED_TOOLS").is_ok();