Discard http output (#156)

Co-authored-by: raulk <raul@protocol.ai>

testplans/graphsync/main.go

@@ -359,15 +359,11 @@ func runRequestor(ctx context.Context, runenv *runtime.RunEnv, initCtx *run.Init
 				if runHTTPTest {
 					// request file directly over http
 					start = time.Now()
-					file, err := ioutil.TempFile(os.TempDir(), fmt.Sprintf("%s-", c.String()))
-					if err != nil {
-						panic(err)
-					}
 					resp, err := http.Get(fmt.Sprintf("http://%s:8080/%s", p.ip.String(), c.String()))
 					if err != nil {
 						panic(err)
 					}
-					bytesRead, err := io.Copy(file, resp.Body)
+					bytesRead, err := io.Copy(ioutil.Discard, resp.Body)
 					if err != nil {
 						panic(err)
 					}

testplans/graphsync/stress.toml

@@ -17,7 +17,7 @@ chunk_size = "20"
 links_per_level = "1024"
 raw_leaves = "true"
 disk_store = "true"
-memory_snapshots = "true"
+memory_snapshots = "none"
 
 [[groups]]
 id = "providers"