policy: remove disable-per-package-lb config

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 0% with 19 lines in your changes missing coverage. Please review.

Project coverage is 21.20%. Comparing base (964340a) to head (c79305c). Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
cmd/terway-cli/cni_linux.go	0.00%	10 Missing :warning:
cmd/terway-cli/policy.go	0.00%	9 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #718 +/- ## ========================================== - Coverage 21.23% 21.20% -0.04% ========================================== Files 121 121 Lines 15876 15895 +19 ========================================== - Hits 3371 3370 -1 - Misses 12129 12150 +21 + Partials 376 375 -1 ``` | [Flag](https://app.codecov.io/gh/AliyunContainerService/terway/pull/718/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=AliyunContainerService) | Coverage Δ | | |---|---|---| | [unittests](https://app.codecov.io/gh/AliyunContainerService/terway/pull/718/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=AliyunContainerService) | `21.20% <0.00%> (-0.04%)` | :arrow_down: | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=AliyunContainerService#carryforward-flags-in-the-pull-request-comment) to find out more.

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