Follow up: remove aspnetcore public feed setup into smoke test online.NuGet.Config

[ellahathaway]

Follow-up from dotnet/sdk PR review:

• PR: .NET Source-Build 9.0.118 June 2026 Updates sdk#54670
• Comment: .NET Source-Build 9.0.118 June 2026 Updates sdk#54670 (comment)

Context
In sdk PR #54670, we added a pipeline Bash step in eng/pipelines/templates/jobs/vmr-build.yml to add the aspnetcore public feed for smoke tests.

We should remove this after the next release.

[github-actions]

🏷️ Source-build triage pass — 2026-06-15 20:12 UTC

Area: area-infra
Additional area(s): none
Kind: tracking
Repro: n/a — follow-up task to remove temporary workaround
Affected version(s): current
Severity: S4 — cleanup task with no broken scenario; technical debt removal

Blocking: not blocking

Urgency: 🟡 next release — no milestone
Reason: Follow-up cleanup to remove temporary pipeline step after next release.

Suggested routing: @dotnet/source-build
Possible SME(s): ellahathaway, mthalman — based on infra/pipeline activity
Evidence:

• ellahathaway: Issue author, created the original workaround in .NET Source-Build 9.0.118 June 2026 Updates sdk#54670
• mthalman: Active on 25+ issues overall, frequent work on pipeline and infrastructure

Recommended labels: add area-infra

Related issues: none found (references dotnet/sdk#54670)
Possible duplicate of: none

Confidence: high
Needs human?: no

Restricted mode — no labels or milestone applied. A maintainer should manually apply any accepted labels and milestone.

Note

🔒 Integrity filter blocked 22 items

The following items were blocked because they don't meet the GitHub integrity level.

• Add testing to source-build-reference-packages #1609 list_issues: has lower integrity than agent requires. The agent cannot read data with integrity below "approved".
• 1ES PT extraction fails: expected copilot-instructions.md missing from dotnet source tarball #5573 list_issues: has lower integrity than agent requires. The agent cannot read data with integrity below "approved".
• Generate SBoM Manifest fails in source-only validation due to missing BuildDropPath #5515 list_issues: has lower integrity than agent requires. The agent cannot read data with integrity below "approved".
• 1ES PT extraction fails: runtime pack binaries missing from SDK/source-build tarballs #5574 list_issues: has lower integrity than agent requires. The agent cannot read data with integrity below "approved".
• WPF - sRGB Color Space Profile.icm is non-free #4590 list_issues: has lower integrity than agent requires. The agent cannot read data with integrity below "approved".
• Release missing for 11.0.0-preview.4 #5562 list_issues: has lower integrity than agent requires. The agent cannot read data with integrity below "approved".
• SignToolTask failed in Source-Built Artifacts (Round0-Sign.proj exit code 1) #5555 list_issues: has lower integrity than agent requires. The agent cannot read data with integrity below "approved".
• NU1301 (401 Unauthorized) when restoring from dnceng internal feeds inside container (ubuntuArmContainer) #5556 list_issues: has lower integrity than agent requires. The agent cannot read data with integrity below "approved".
• Guardian TSAUpload failed: TSA Error 999 – insufficient disk space on build agent #5547 list_issues: has lower integrity than agent requires. The agent cannot read data with integrity below "approved".
• NU1903: System.Security.Cryptography.Xml 8.0.0 vulnerability fails Sign Source-Built Artifacts #5544 list_issues: has lower integrity than agent requires. The agent cannot read data with integrity below "approved".
• NU1603 failure due to missing Microsoft.DotNet.SourceBuild.Tasks 10.0.0-beta.26219.105 #5552 list_issues: has lower integrity than agent requires. The agent cannot read data with integrity below "approved".
• 1ES PT Error: Using an image without 1es-pt-prerequisites artifact is not allowed #5543 list_issues: has lower integrity than agent requires. The agent cannot read data with integrity below "approved".
• NuGet restore is returning 401 Unauthorized from internal Azure DevOps feeds #5532 list_issues: has lower integrity than agent requires. The agent cannot read data with integrity below "approved".
• Run Tests times out even though all source-build tests pass #5514 list_issues: has lower integrity than agent requires. The agent cannot read data with integrity below "approved".
• VMR Source-Build on CentOS Stream 9 / Fedora 43 fails with agent timeout and exit code 134 #5525 list_issues: has lower integrity than agent requires. The agent cannot read data with integrity below "approved".
• runtime build fails with CS9368 (RequiresUnsafeAttribute is only valid under the updated memory safety rules) #5527 list_issues: has lower integrity than agent requires. The agent cannot read data with integrity below "approved".
• ... and 6 more items

To allow these resources, lower min-integrity in your GitHub frontmatter:

tools:
  github:
    min-integrity: approved  # merged | approved | unapproved | none

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