diff --git a/driver-reactive-streams/src/test/unit/com/mongodb/reactivestreams/client/internal/TestHelper.java b/driver-reactive-streams/src/test/unit/com/mongodb/reactivestreams/client/internal/TestHelper.java
index c55d2dccac6..993e83dd5ca 100644
--- a/driver-reactive-streams/src/test/unit/com/mongodb/reactivestreams/client/internal/TestHelper.java
+++ b/driver-reactive-streams/src/test/unit/com/mongodb/reactivestreams/client/internal/TestHelper.java
@@ -114,10 +114,6 @@ public static void assertOperationIsTheSameAs(@Nullable final Object expectedOpe
         assertEquals(expectedMap, actualMap);
     }
 
-    public static void assertPublisherIsTheSameAs(final Publisher<?> expectedPublisher, final Publisher<?> actualPublisher) {
-        assertPublisherIsTheSameAs(expectedPublisher, actualPublisher, null);
-    }
-
     public static void assertPublisherIsTheSameAs(final Publisher<?> expectedPublisher, final Publisher<?> actualPublisher,
             @Nullable final String message) {
         Map<String, Optional<Object>> expectedMap = getClassPrivateFieldValues(getRootSource(expectedPublisher));