Revert "Merge pull request #29290 from s-aga-r/fix/delivery-note/billed-amount" (backport #29782)

[mergify]

This is an automatic backport of pull request #29782 done by Mergify.
Cherry-pick of 7fa46f7 has failed:

On branch mergify/bp/develop/pr-29782
Your branch is up to date with 'origin/develop'.

You are currently cherry-picking commit 7fa46f77e0.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --skip" to skip this patch)
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Changes to be committed:
	modified:   erpnext/accounts/doctype/sales_invoice/sales_invoice.py
	modified:   erpnext/stock/doctype/delivery_note/delivery_note.py

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   erpnext/patches.txt

To fix up this pull request, you can check it out locally. See documentation: https://docs.github.com/en/github/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally

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