revert main changes

Author: SteveL-MSFT

dsc/src/main.rs

@@ -29,21 +29,6 @@ pub mod util;
 i18n!("locales", fallback = "en-us");
 
 fn main() {
-    #[cfg(windows)]
-    {
-        let mut builder = std::thread::Builder::new();
-        builder = builder.stack_size(2 * 1024 * 1024); // Default stack is too small on Windows causing overflow
-        builder.spawn(|| {
-            dsc_main();
-        }).unwrap().join().unwrap();
-    }
-    #[cfg(not(windows))]
-    {
-        dsc_main();
-    }
-}
-
-fn dsc_main() {
     #[cfg(debug_assertions)]
     check_debug();