Switch back to MinGW makefiles

aeron-driver-sys/build.rs

@@ -59,13 +59,9 @@ pub fn main() {
         _ => (),
     };
 
-    let mut config = Config::new(&aeron_path);
-    let config = if cfg!(target_os = "windows") {
-        config.generator("MSYS Makefiles")
-    } else {
-        &mut config
-    };
-    let cmake_output = config.build_target(link_type.target_name()).build();
+    let cmake_output = Config::new(&aeron_path)
+        .build_target(link_type.target_name())
+        .build();
 
     // Trying to figure out the final path is a bit weird;
     // For Linux/OSX, it's just build/lib