code: @DoesServiceRequest
      public boolean deleteIfExists(AccessCondition accessCondition, FileRequestOptions options,
              OperationContext opContext) throws StorageException, URISyntaxException {
          options = FileRequestOptions.populateAndApplyDefaults(options, this.fileServiceClient);
  
          boolean exists = this.exists(true /* primaryOnly */, accessCondition, options, opContext);
          if (exists) {
              try {
                  this.delete(accessCondition, options, opContext);
                  return true;
              }
              catch (StorageException e) {
                  if (e.getHttpStatusCode() == HttpURLConnection.HTTP_NOT_FOUND
                          && StorageErrorCodeStrings.RESOURCE_NOT_FOUND.equals(e.getErrorCode())) {
                      return false;
                  }
                  else {
                      throw e;
                  }
              }
          }
          else {
              return false;
          }
      }
docs: Deletes the directory if it exists using the specified request options and operation context.
  
  @param accessCondition
  An {@link AccessCondition} object that represents the access conditions for the directory.
  @param options
  A {@link FileRequestOptions} object that specifies any additional options for the request. Specifying
  <code>null</code> will use the default request options from the associated service client (
  {@link CloudFileClient}).
  @param opContext
  An {@link OperationContext} object that represents the context for the current operation. This object
  is used to track requests to the storage service, and to provide additional runtime information about
  the operation.
  
  @return <code>true</code> if the directory existed and was deleted; otherwise, <code>false</code>.
  
  @throws StorageException
  If a storage service error occurred.
  @throws URISyntaxException