Remove unnecessary @SuppressWarnings("unchecked")

Change-Id: Iaa36d80464504d482783a200e895d12d2c073a6f
diff --git a/gerrit-sshd/src/main/java/com/google/gerrit/sshd/SshDaemon.java b/gerrit-sshd/src/main/java/com/google/gerrit/sshd/SshDaemon.java
index 11c58c8..92ab653 100644
--- a/gerrit-sshd/src/main/java/com/google/gerrit/sshd/SshDaemon.java
+++ b/gerrit-sshd/src/main/java/com/google/gerrit/sshd/SshDaemon.java
@@ -155,7 +155,6 @@
   private volatile IoAcceptor acceptor;
   private final Config cfg;
 
-  @SuppressWarnings("unchecked")
   @Inject
   SshDaemon(final CommandFactory commandFactory, final NoShell noShell,
       final PublickeyAuthenticator userAuth,