Remove unused methods in Result

src/main/java/io/weaviate/client/base/Result.java

@@ -14,7 +14,6 @@
 @ToString
 @FieldDefaults(makeFinal = true, level = AccessLevel.PRIVATE)
 public class Result<T> {
-  int statusCode;
   T result;
   WeaviateError error;
 
@@ -23,7 +22,6 @@ public Result(Response<T> response) {
   }
 
   public Result(int statusCode, T body, WeaviateErrorResponse errors) {
-    this.statusCode = statusCode;
     if (errors != null && errors.getError() != null) {
       List<WeaviateErrorMessage> items = errors.getError().stream().filter(Objects::nonNull).collect(Collectors.toList());
       this.error = new WeaviateError(statusCode, items);
@@ -37,16 +35,6 @@ public Result(int statusCode, T body, WeaviateErrorResponse errors) {
     }
   }
 
-  /**
-   * Copy the Result object with a null body, preserving only the status code and the error message.
-   * 
-   * @param <NULL> Would-be response type. It's required for type safety, but can be anything since the body is always set to null.
-   * @return A copy of this Result.
-   */
-  public <NULL> Result<NULL> toErrorResult() {
-    return new Result<>(this.error.getStatusCode(), null, WeaviateErrorResponse.builder().error(this.error.getMessages()).build());
-  }
-
   public boolean hasErrors() {
     return this.error != null;
   }