chore: unused imports

Author: kuhe

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

@@ -23,7 +23,6 @@
 import software.amazon.smithy.aws.traits.ServiceTrait;
 import software.amazon.smithy.aws.traits.protocols.RestXmlTrait;
 import software.amazon.smithy.codegen.core.SymbolProvider;
-import software.amazon.smithy.codegen.core.SymbolReference;
 import software.amazon.smithy.model.knowledge.HttpBinding;
 import software.amazon.smithy.model.knowledge.HttpBinding.Location;
 import software.amazon.smithy.model.shapes.MemberShape;

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

@@ -29,7 +29,6 @@
 import software.amazon.smithy.typescript.codegen.TypeScriptWriter;
 import software.amazon.smithy.typescript.codegen.integration.DocumentMemberSerVisitor;
 import software.amazon.smithy.typescript.codegen.integration.HttpRpcProtocolGenerator;
-import software.amazon.smithy.utils.IoUtils;
 import software.amazon.smithy.utils.SmithyInternalApi;
 
 /**

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

@@ -38,7 +38,6 @@
 import software.amazon.smithy.typescript.codegen.TypeScriptWriter;
 import software.amazon.smithy.typescript.codegen.integration.DocumentMemberSerVisitor;
 import software.amazon.smithy.typescript.codegen.integration.HttpBindingProtocolGenerator;
-import software.amazon.smithy.utils.IoUtils;
 import software.amazon.smithy.utils.SmithyInternalApi;
 
 /**