fix(codegen): remove unused import (#4260)

Author: kuhe

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

@@ -29,8 +29,6 @@
 import java.util.function.BiConsumer;
 import java.util.function.Consumer;
 import java.util.logging.Logger;
-
-import jdk.internal.net.http.common.Log;
 import software.amazon.smithy.aws.traits.ServiceTrait;
 import software.amazon.smithy.aws.traits.auth.SigV4Trait;
 import software.amazon.smithy.codegen.core.Symbol;