Fixes in test naming and removed unusefull filter in pipeline

Author: andsel

qa/integration/fixtures/pipeline_id_log_spec.yml

@@ -7,9 +7,6 @@ config: |-
       count => 4
     }
  }
- filter {
-   sleep { time => 1 every => 2 }
- }
  output {
    null {}
  }

qa/integration/specs/pipeline_id_log_spec.rb

@@ -30,12 +30,11 @@
   let(:temp_dir) { Stud::Temporary.directory("logstash-pipelinelog-test") }
   let(:config) { @fixture.config("root") }
 
-  it "should write logs to a new dir" do
+  it "should write logs with pipeline.id" do
     pipeline_name = "custom_pipeline"
     settings = {
       "path.logs" => temp_dir,
-      "pipeline.id" => pipeline_name,
-      "slowlog.threshold.warn" => "500ms"
+      "pipeline.id" => pipeline_name
     }
     IO.write(@ls.application_settings_file, settings.to_yaml)
     @ls.spawn_logstash("-w", "1" , "-e", config)