Fix detekt issues

Author: samiuelson

plugins/woocommerce/src/test/java/org/wordpress/android/fluxc/store/OrderUpdateStoreTest.kt

@@ -13,7 +13,6 @@ import org.mockito.kotlin.mock
 import org.mockito.kotlin.verify
 import org.mockito.kotlin.verifyNoInteractions
 import org.mockito.kotlin.whenever
-import org.wordpress.android.fluxc.Dispatcher
 import org.wordpress.android.fluxc.model.LocalOrRemoteId.LocalId
 import org.wordpress.android.fluxc.model.OrderEntity
 import org.wordpress.android.fluxc.model.SiteModel