Reversion and cleanup

Moving the `aeronmd` example to the sys crate caused issues for static
linking because of the `tempfile` crate.

Revert "Install luuid for Linux"
Revert "Fix some Cargo.toml issues"
Revert "More minor cleanup"

aeron_driver-sys/src/lib.rs

@@ -6,6 +6,8 @@ include!(concat!(env!("OUT_DIR"), "/bindings.rs"));
 
 #[cfg(test)]
 mod tests {
+    use crate::*;
+    use std::convert::TryInto;
 
     #[test]
     fn version_check() {