Marks Linux_android animated_complex_opacity_perf__e2e_summary to be unflaky (#103501)

Author: fluttergithubbot

.ci.yaml

@@ -1279,7 +1279,6 @@ targets:
   - name: Linux_android animated_complex_opacity_perf__e2e_summary
     recipe: devicelab/devicelab_drone
     presubmit: false
-    bringup: true
     timeout: 60
     properties:
       tags: >