re-added OldHeadPipeline

src/performancetest/java/teetime/framework/OldHeadPipeline.java

@@ -7,13 +7,4 @@ public final class OldHeadPipeline<FirstStage extends Stage, LastStage extends S
 
 	public OldHeadPipeline(final String name) {}
 
-	@Override
-	public boolean shouldBeTerminated() {
-		return this.firstStage.shouldBeTerminated();
-	}
-
-	@Override
-	public void terminate() {
-		this.firstStage.terminate();
-	}
 }