Remove budget program (backport #17816)

[mergify]

This is an automatic backport of pull request #17816 done by Mergify.
Cherry-pick of a66566e has failed:

On branch mergify/bp/v1.7/pr-17816
Your branch is up to date with 'origin/v1.7'.

You are currently cherry-picking commit a66566e75.
  (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:   Cargo.toml
	modified:   genesis/src/main.rs
	modified:   ledger/src/entry.rs
	modified:   perf/src/test_tx.rs
	deleted:    programs/budget/src/budget_expr.rs
	deleted:    programs/budget/src/budget_instruction.rs
	deleted:    programs/budget/src/budget_processor.rs
	deleted:    programs/budget/src/budget_state.rs
	deleted:    programs/budget/src/lib.rs

Unmerged paths:
  (use "git add/rm <file>..." as appropriate to mark resolution)
	both modified:   Cargo.lock
	both modified:   genesis/Cargo.toml
	both modified:   ledger/Cargo.toml
	both modified:   perf/Cargo.toml
	deleted by them: programs/budget/Cargo.toml

To fix up this pull request, you can check it out locally. See documentation: https://help.github.com/articles/checking-out-pull-requests-locally/

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[mergify]

automerge label removed due to a CI failure