code: public void deletePipeline(Object projectIdOrPath, int pipelineId) throws GitLabApiException {
         delete(Response.Status.ACCEPTED, null, "projects", getProjectIdOrPath(projectIdOrPath), "pipelines", pipelineId);
      }
docs: Delete a pipeline from a project.
  
  <pre><code>GitLab Endpoint: DELETE /projects/:id/pipelines/:pipeline_id</code></pre>
  
  @param projectIdOrPath the project in the form of an Integer(ID), String(path), or Project instance
  @param pipelineId the pipeline ID to delete
  @throws GitLabApiException if any exception occurs during execution