Remove unused field

Co-authored-by: Sören Reichardt <[email protected]>

Author: vnickolov

alpha/alpha-embeddings/src/test/java/org/neo4j/gds/embeddings/graphsage/ddl4j/functions/WeightedElementwiseMaxTest.java

@@ -63,9 +63,6 @@ class WeightedElementwiseMaxTest extends GraphSageBaseTest implements FiniteDiff
     @Inject
     private IdFunction idFunction;
 
-
-    private Weights<Matrix> weights;
-
     @Test
     void shouldApplyWeightsToEmbeddings() {
         long[] ids = new long[]{