Marks Mac flutter_view_macos__start_up to be unflaky (#112089)

diff --git a/.ci.yaml b/.ci.yaml
index e647fd5..591cba6 100644
--- a/.ci.yaml
+++ b/.ci.yaml
@@ -2520,7 +2520,6 @@
       task_name: flutter_gallery_macos__start_up
 
   - name: Mac flutter_view_macos__start_up
-    bringup: true # New target https://github.com/flutter/flutter/issues/109633
     presubmit: false
     recipe: devicelab/devicelab_drone
     timeout: 60