[CI] Remove special drone actions from ci

[phil-davis]

Description

CI changes only. No changelog needed.

The drone CI builds currently have these features for PRs:

• any build jobs that are currently running for a PR/branch are stopped
• if an acceptance test pipeline fails, and the PR does not have full-ci in its title, then the failing pipeline cancels the whole build (all pipelines get cancelled - "early fail")

This PR removes these features from CI.

How Has This Been Tested?

CI

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Database schema changes (next release will require increase of minor version instead of patch)
• Breaking change (fix or feature that would cause existing functionality to change)
• Technical debt
• Tests only (no source changes)

Checklist:

• Code changes
• Unit tests added
• Acceptance tests added
• Documentation ticket raised:
• Changelog item, see TEMPLATE

[micbar]

Needs to be ported to ´stable-3.0andeducation-3.1`

[phil-davis]

@micbar this is the change for oC10 core.

owncloud/ocis#6714 in ocis will need to be ported to various branches.