SingleUserGroup: Remove unused import

Signed-off-by: Edwin Kempin <ekempin@google.com>
Change-Id: I15dd3a9aca45f334ddf4d8febd859d966421493e
diff --git a/src/main/java/com/googlesource/gerrit/plugins/singleusergroup/SingleUserGroup.java b/src/main/java/com/googlesource/gerrit/plugins/singleusergroup/SingleUserGroup.java
index 18eadf1..4e2f7ef 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/singleusergroup/SingleUserGroup.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/singleusergroup/SingleUserGroup.java
@@ -29,7 +29,6 @@
 import com.google.gerrit.extensions.registration.DynamicSet;
 import com.google.gerrit.index.query.QueryParseException;
 import com.google.gerrit.server.CurrentUser;
-import com.google.gerrit.server.IdentifiedUser;
 import com.google.gerrit.server.account.AbstractGroupBackend;
 import com.google.gerrit.server.account.AccountCache;
 import com.google.gerrit.server.account.AccountState;