fix(codegen): checkstyle errors

Author: trivikr

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

@@ -38,7 +38,6 @@
 import software.amazon.smithy.model.shapes.OperationShape;
 import software.amazon.smithy.model.shapes.ServiceShape;
 import software.amazon.smithy.model.shapes.Shape;
-import software.amazon.smithy.model.shapes.ShapeId;
 import software.amazon.smithy.model.traits.OptionalAuthTrait;
 import software.amazon.smithy.typescript.codegen.CodegenUtils;
 import software.amazon.smithy.typescript.codegen.LanguageTarget;

codegen/smithy-aws-typescript-codegen/src/main/java/software/amazon/smithy/aws/typescript/codegen/auth/http/integration/AwsSdkCustomizeSigV4Auth.java

@@ -8,12 +8,10 @@
 import static software.amazon.smithy.aws.typescript.codegen.AwsTraitsUtils.isAwsService;
 import static software.amazon.smithy.aws.typescript.codegen.AwsTraitsUtils.isSigV4Service;
 
-import java.nio.file.Paths;
 import java.util.Collections;
 import java.util.List;
 import java.util.Map;
 import java.util.Set;
-import java.util.function.BiConsumer;
 import java.util.function.Consumer;
 import software.amazon.smithy.aws.traits.auth.SigV4Trait;
 import software.amazon.smithy.aws.typescript.codegen.AwsDependency;
@@ -23,11 +21,8 @@
 import software.amazon.smithy.model.knowledge.TopDownIndex;
 import software.amazon.smithy.model.shapes.OperationShape;
 import software.amazon.smithy.model.shapes.ServiceShape;
-import software.amazon.smithy.model.shapes.ShapeId;
 import software.amazon.smithy.model.traits.OptionalAuthTrait;
-import software.amazon.smithy.typescript.codegen.CodegenUtils;
 import software.amazon.smithy.typescript.codegen.LanguageTarget;
-import software.amazon.smithy.typescript.codegen.TypeScriptCodegenContext;
 import software.amazon.smithy.typescript.codegen.TypeScriptDependency;
 import software.amazon.smithy.typescript.codegen.TypeScriptSettings;
 import software.amazon.smithy.typescript.codegen.TypeScriptWriter;