Minor build cleanup

aeron-driver-sys/build.rs

@@ -47,8 +47,7 @@ pub fn main() {
         link_type.target_name()
     );
 
-    match link_type {
-        LinkType::Static => {
+    if let LinkType::Static = link_type {
         // On Windows, there are some extra libraries needed for static link
         // that aren't included by Aeron.
         if cfg!(target_os = "windows") {
@@ -56,8 +55,6 @@ pub fn main() {
             println!("cargo:rustc-link-lib=iphlpapi");
         }
     }
-        _ => (),
-    };
 
     let cmake_output = Config::new(&aeron_path)
         .build_target(link_type.target_name())