Merge pull request kubernetes#61714 from shyamjvs/revert-fluentd-rolling-upgrade-change

Automatic merge from submit-queue (batch tested with PRs 60519, 61099, 61218, 61166, 61714). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

Revert "Increase fluentd rolling-upgrade maxUnavailable to large value"

This reverts commit 7dd6adc.

Ref kubernetes#61190 (comment)

/cc @wojtek-t 

```release-note
NONE
```

Author: Kubernetes Submit Queue

cluster/addons/fluentd-gcp/fluentd-gcp-ds.yaml

@@ -10,8 +10,6 @@ metadata:
     version: v3.0.0
 spec:
   updateStrategy:
-    rollingUpdate:
-      maxUnavailable: 5000
     type: RollingUpdate
   template:
     metadata: