remove redundant scheduling records

[hujun260]

Summary

remove redundant scheduling records
reason:
Since the scheduling records have already been moved to the interrupt exit in this submission, we need to delete the original records' locations. This commit fixes the regression from #13651

Impact

scheduling records

Testing

ci ostest

[nuttxpr]

[Experimental Bot, please feedback here]

No, this PR does not fully meet the NuttX requirements. While it provides a summary and testing information, it lacks crucial details.

Here's what's missing:

• Summary: Needs more detail. How does removing the redundant records work? What specific code is being removed? The provided summary is more of a justification.
• Impact: This section is severely lacking. It needs to address all the points listed in the template (user impact, build impact, hardware impact, documentation, security, compatibility). Simply stating "scheduling records" doesn't explain the impact. Even if the answer is "NO" for most of them, it should be explicitly stated.
• Testing: While CI testing is mentioned, providing actual log snippets demonstrating the issue before the change and the corrected behavior after the change is essential. "ci ostest" isn't sufficient. Also, specifying the Build Host and Target details is required.

In short, the PR needs to be significantly expanded to meet the requirements. Each section in the template needs to be properly addressed, even if the answer is "NO." More detail is needed in the summary and, crucially, actual testing logs must be included.

[acassis]

@masayuki2009 please verify if this PR fix the QEMU regression