If you are talking about the build results, that is not possible.
If you are just referring to the ability to trigger builds, you can disable it by Repository configuration >> Pipelines >> Settings >> Enable pipelines toggle.
You can find more details about this on Aneita Yang's comments on [BCLOUD-17074] Delete pipeline.
We are excited to announce the open beta program for self-hosted runners. Bitbucket Pipelines Runners is available to everyone. Please try it and let us know your feedback. If you have any issue...
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