remove expansion comments

Author: Sarthak Agrawal

internal/controller/state/graph/graph_test.go

@@ -830,7 +830,7 @@ func TestBuildGraph(t *testing.T) {
 					AcceptedHostnames: map[string][]string{},
 					FailedConditions:  []conditions.Condition{conditions.NewRouteHostnameConflict()},
 				},
-				SectionName: nil, // No expansion - represents attachment to all listeners
+				SectionName: nil, // represents attachment to all listeners
 			},
 		},
 		Spec: L4RouteSpec{

internal/controller/state/graph/route_common_test.go

@@ -121,7 +121,7 @@ func TestBuildSectionNameRefs(t *testing.T) {
 		{
 			Idx:         6,
 			Gateway:     CreateParentRefGateway(gws[gwNsName3]),
-			SectionName: nil, // No expansion - keep as nil to represent attachment to all listeners
+			SectionName: nil, // represents attachment to all listeners
 		},
 	}