Use drop() instead of disconnect()

Previously, the user had to explicitly call diconnect() to terminate the
connection to the Nitrokey.  Now NK_logout() is called automatically
once the device is out of scope as UnauthenticatedDevice implements
Drop.  AdminAuthenticatedDevice and UserAuthenticatedDevice do not have
to implement Drop, as it will be called recursively.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/tests/pro.rs b/src/tests/pro.rs
index 732c248..feadcbc 100644
--- a/src/tests/pro.rs
+++ b/src/tests/pro.rs
@@ -48,7 +48,7 @@ fn connect() {
 #[cfg_attr(not(feature = "test-pro"), ignore)]
 fn disconnect() {
     set_debug(false);
-    ::connect().unwrap().disconnect();
+    ::connect().unwrap();
     unsafe {
         let ptr = ::nitrokey_sys::NK_device_serial_number();
         assert!(!ptr.is_null());