remove stray deprecation tag

Author: kuhe

smithy-typescript-codegen/src/main/java/software/amazon/smithy/typescript/codegen/TypeScriptWriter.java

@@ -186,7 +186,6 @@ && getDependencies().stream().noneMatch(dep -> dep.getPackageName().equals(packa
      * @param from PackageContainer to import the type from.
      * @return Returns the writer.
      */
-    @Deprecated
     public TypeScriptWriter addImport(String name, String as, PackageContainer from) {
         if (from instanceof Dependency) {
             addDependency((Dependency) from);