chore: not to import auth config when not required at all

Author: AllanZhengYP

codegen/smithy-aws-typescript-codegen/src/main/java/software/amazon/smithy/aws/typescript/codegen/AddBuiltinPlugins.java

@@ -54,6 +54,7 @@ public List<RuntimeClientPlugin> getClientPlugins() {
                         .build(),
                 RuntimeClientPlugin.builder()
                         .withConventions(AwsDependency.MIDDLEWARE_SIGNING.dependency, "AwsAuth", HAS_CONFIG)
+                        .servicePredicate((m, s) -> !isAllOptionalAuthOperation(m, s))
                         .build(),
                 RuntimeClientPlugin.builder()
                         .withConventions(AwsDependency.MIDDLEWARE_SIGNING.dependency, "AwsAuth", HAS_MIDDLEWARE)
@@ -175,4 +176,15 @@ private static boolean hasOptionalAuthOperation(Model model, ServiceShape servic
         }
         return false;
     }
+
+    private static boolean isAllOptionalAuthOperation(Model model, ServiceShape service) {
+        TopDownIndex topDownIndex = TopDownIndex.of(model);
+        Set<OperationShape> operations = topDownIndex.getContainedOperations(service);
+        for (OperationShape operation : operations) {
+            if (!operation.getTrait(OptionalAuthTrait.class).isPresent()) {
+                return false;
+            }
+        }
+        return true;
+    }
 }