Mark `Windows_android hot_mode_dev_cycle_win__benchmark` as no longer flaky (#143016)

Marked flaky in flutter/flutter#142609

Per the reasons I discuss in [this comment](https://github.com/flutter/flutter/issues/142608#issuecomment-1930868003) on the corresponding issue, I believe this test is probably not actually flaky.

Fixes https://github.com/flutter/flutter/issues/142608
diff --git a/.ci.yaml b/.ci.yaml
index fa480b3..7780442 100644
--- a/.ci.yaml
+++ b/.ci.yaml
@@ -5927,7 +5927,6 @@
 
   # windows motog4 benchmark
   - name: Windows_android hot_mode_dev_cycle_win__benchmark
-    bringup: true # Flaky https://github.com/flutter/flutter/issues/142608
     recipe: devicelab/devicelab_drone
     presubmit: false
     timeout: 60