Fix unused imports in FlushCaches

Change-Id: I5224c0cc4643e5ea51aa9daa27581538b68bbd6f
diff --git a/gerrit-sshd/src/main/java/com/google/gerrit/sshd/commands/FlushCaches.java b/gerrit-sshd/src/main/java/com/google/gerrit/sshd/commands/FlushCaches.java
index 6c6ed53..4b78cfc 100644
--- a/gerrit-sshd/src/main/java/com/google/gerrit/sshd/commands/FlushCaches.java
+++ b/gerrit-sshd/src/main/java/com/google/gerrit/sshd/commands/FlushCaches.java
@@ -22,13 +22,11 @@
 import com.google.gerrit.sshd.BaseCommand;
 import com.google.gerrit.sshd.CommandMetaData;
 import com.google.inject.Inject;
-import com.google.inject.Provider;
 
 import org.kohsuke.args4j.Option;
 
 import java.util.ArrayList;
 import java.util.List;
-import java.util.Map;
 import java.util.SortedSet;
 
 /** Causes the caches to purge all entries and reload. */