Tabs occasionally tried to setState after dispose (#5784)

Fixes https://github.com/flutter/flutter/issues/5776
diff --git a/dev/benchmarks/microbenchmarks/README.md b/dev/benchmarks/microbenchmarks/README.md
index 6f6e317..1c7d383 100644
--- a/dev/benchmarks/microbenchmarks/README.md
+++ b/dev/benchmarks/microbenchmarks/README.md
@@ -3,10 +3,10 @@
 To run these benchmarks on a device:
 
 ```
-flutter run --release -t lib/gestures/velocity_tracker_data.dart
-flutter run --release -t lib/stocks/animation_bench.dart
-flutter run --release -t lib/stocks/build_bench.dart
-flutter run --release -t lib/stocks/layout_bench.dart
+flutter run --release lib/gestures/velocity_tracker_data.dart
+flutter run --release lib/stocks/animation_bench.dart
+flutter run --release lib/stocks/build_bench.dart
+flutter run --release lib/stocks/layout_bench.dart
 ```
 
 The results should be in the device logs.