chore: cleanup changelog (#21202)

Author: sapphi-red

packages/plugin-legacy/CHANGELOG.md

@@ -1,55 +1,7 @@
 ## [8.0.0-beta.0](https://github.com/vitejs/vite/compare/plugin-legacy@7.2.1...plugin-legacy@8.0.0-beta.0) (2025-12-03)
 ### Features
 
-* **legacy:** add`build.rolldownOptions.output.sourcemapBaseUrl` support ([76e28a7](https://github.com/vitejs/vite/commit/76e28a7b91f5300d1cb993d55f3dade4635441c4))
-* plugin legacy ([#293](https://github.com/vitejs/vite/issues/293)) ([e1ef2e5](https://github.com/vitejs/vite/commit/e1ef2e58068a1185e1af10d076a7bb4b5514f21b))
-* use rolldown for build ([47a4d50](https://github.com/vitejs/vite/commit/47a4d506998e445e992f671b0fe876de1119c9bc))
-
-### Bug Fixes
-
-* **deps:** update all non-major dependencies ([879de86](https://github.com/vitejs/vite/commit/879de86935a31b4e47ab907ddd859366518ce268))
-* **deps:** update all non-major dependencies ([#20587](https://github.com/vitejs/vite/issues/20587)) ([20d4817](https://github.com/vitejs/vite/commit/20d48172a0352d32f766b3c878d52a8944fdbf6e))
-* **deps:** update all non-major dependencies ([#20634](https://github.com/vitejs/vite/issues/20634)) ([4851cab](https://github.com/vitejs/vite/commit/4851cab3ba818b5f0f82eef3796b61d4b12768f1))
-* **deps:** update all non-major dependencies ([#20676](https://github.com/vitejs/vite/issues/20676)) ([5a274b2](https://github.com/vitejs/vite/commit/5a274b29df83744cf0ce4dafd94029d2a9e01135))
-* **deps:** update all non-major dependencies ([#20709](https://github.com/vitejs/vite/issues/20709)) ([0401feb](https://github.com/vitejs/vite/commit/0401feba17e60bd7e976c5643128a0da49670a83))
-* **deps:** update all non-major dependencies ([#20732](https://github.com/vitejs/vite/issues/20732)) ([122bfba](https://github.com/vitejs/vite/commit/122bfbabeb1f095ce7cabd30893e5531e9a007c4))
-* **deps:** update all non-major dependencies ([#20773](https://github.com/vitejs/vite/issues/20773)) ([88af2ae](https://github.com/vitejs/vite/commit/88af2ae7df77160e7d11a9fa147a4967c8499f13))
-* **deps:** update all non-major dependencies ([#20811](https://github.com/vitejs/vite/issues/20811)) ([9f2247c](https://github.com/vitejs/vite/commit/9f2247c066cac75746356c9391845235445a154b))
-* **deps:** update all non-major dependencies ([#20894](https://github.com/vitejs/vite/issues/20894)) ([3213f90](https://github.com/vitejs/vite/commit/3213f90ff0d8f274bcec65f40aac6dfcff1ac244))
-* **deps:** update all non-major dependencies ([#21008](https://github.com/vitejs/vite/issues/21008)) ([185641e](https://github.com/vitejs/vite/commit/185641e3cdae29277c41eb8028f6eac542215f01))
-* **deps:** update all non-major dependencies ([#21128](https://github.com/vitejs/vite/issues/21128)) ([4f8171e](https://github.com/vitejs/vite/commit/4f8171eb3046bd70c83964689897dab4c6b58bc0))
-* **deps:** update all non-major dependencies ([#21146](https://github.com/vitejs/vite/issues/21146)) ([a3cd262](https://github.com/vitejs/vite/commit/a3cd262f37228967e455617e982b35fccc49ffe9))
-* **deps:** update all non-major dependencies ([#21175](https://github.com/vitejs/vite/issues/21175)) ([72e398a](https://github.com/vitejs/vite/commit/72e398a46d8d2f54fbcbeb9ff0dceab346aeb642))
-* **legacy:** fix remaining issues ([#312](https://github.com/vitejs/vite/issues/312)) ([5d7dc73](https://github.com/vitejs/vite/commit/5d7dc73cdbed9a7daae2390b4372be724e220372))
-* **legacy:** use remove conditions for normal Vite ([a2594ec](https://github.com/vitejs/vite/commit/a2594ec5e6206310c6d1c8001a02ecb41cdc4b9c))
-
-### Performance Improvements
-
-* **legacy:** set some babel options ([6f79210](https://github.com/vitejs/vite/commit/6f79210dd657e0802546d99878c6629ade16fb47))
-
-### Miscellaneous Chores
-
-* changes to merge back to vite repo ([35b3cae](https://github.com/vitejs/vite/commit/35b3cae772419409872e1afd8d51a303e3504d2d))
-* **deps:** update dependency tsdown to ^0.15.6 ([#20893](https://github.com/vitejs/vite/issues/20893)) ([3dfe8a1](https://github.com/vitejs/vite/commit/3dfe8a1572ae8ad247814c3d041f0421906eaaf7))
-* **deps:** update dependency tsdown to ^0.16.6 ([#21145](https://github.com/vitejs/vite/issues/21145)) ([d9ac204](https://github.com/vitejs/vite/commit/d9ac20406cca3b32fc37c32a1c081881bf1ee897))
-* **deps:** update rolldown-related dependencies ([#20586](https://github.com/vitejs/vite/issues/20586)) ([77632c5](https://github.com/vitejs/vite/commit/77632c55db51cd6d03bcf24a1cef8d21058100a3))
-* **deps:** update rolldown-related dependencies ([#20633](https://github.com/vitejs/vite/issues/20633)) ([98b92e8](https://github.com/vitejs/vite/commit/98b92e8c4b10ae87c48292a8ac09b01ca81a02cf))
-* **deps:** update rolldown-related dependencies ([#20675](https://github.com/vitejs/vite/issues/20675)) ([a67bb5f](https://github.com/vitejs/vite/commit/a67bb5fbec5f3e42151dc7e3166858d0d33533de))
-* **deps:** update rolldown-related dependencies ([#20772](https://github.com/vitejs/vite/issues/20772)) ([d785e72](https://github.com/vitejs/vite/commit/d785e72f2ead705e8b2416c0a5097878fced3435))
-* **deps:** update rolldown-related dependencies ([#20810](https://github.com/vitejs/vite/issues/20810)) ([ea68a88](https://github.com/vitejs/vite/commit/ea68a8868c7ee249213057f8a81c3f92a9839dde))
-* **deps:** update rolldown-related dependencies ([#20854](https://github.com/vitejs/vite/issues/20854)) ([4dd06fd](https://github.com/vitejs/vite/commit/4dd06fdc8d643059c2abf88188eae7c4877aab6e))
-* **deps:** update rolldown-related dependencies ([#20923](https://github.com/vitejs/vite/issues/20923)) ([a5e3b06](https://github.com/vitejs/vite/commit/a5e3b064fa7ca981cb6f15f8e88806b36a99b8bf))
-* **deps:** update rolldown-related dependencies ([#20965](https://github.com/vitejs/vite/issues/20965)) ([6ad5424](https://github.com/vitejs/vite/commit/6ad5424f0bcabd8943c34d341cf9ed2e64b3d53c))
-* **deps:** update rolldown-related dependencies ([#21009](https://github.com/vitejs/vite/issues/21009)) ([7cec1ad](https://github.com/vitejs/vite/commit/7cec1addc257eb5bd0856adbe1e4306f0bb83e22))
-* **deps:** update rolldown-related dependencies ([#21047](https://github.com/vitejs/vite/issues/21047)) ([e3a6a83](https://github.com/vitejs/vite/commit/e3a6a83406943bc59a9916cae3f25ab33c2b5802))
-* **deps:** update rolldown-related dependencies ([#21095](https://github.com/vitejs/vite/issues/21095)) ([39a0a15](https://github.com/vitejs/vite/commit/39a0a15fd24ed37257c48b795097a3794e54d255))
-* **deps:** update rolldown-related dependencies ([#21127](https://github.com/vitejs/vite/issues/21127)) ([5029720](https://github.com/vitejs/vite/commit/50297208452241061cb44d09a4bbdf77a11ac01e))
-* **deps:** update rolldown-related dependencies ([#21174](https://github.com/vitejs/vite/issues/21174)) ([74559c9](https://github.com/vitejs/vite/commit/74559c947483a8ee24da052ac2d9568f7cb3546a))
-
-### Build System
-
-* **legacy:** remove duplicated rolldown-vite file ([#20943](https://github.com/vitejs/vite/issues/20943)) ([b4a124b](https://github.com/vitejs/vite/commit/b4a124b2c7950216eada6284138a00e1610f3923))
-* use isolated declarations ([#20928](https://github.com/vitejs/vite/issues/20928)) ([dad7643](https://github.com/vitejs/vite/commit/dad76436e96e1bac2baa805a0a3c1861e88e050c))
+* the epic `rolldown-vite` merge ([#21189](https://github.com/vitejs/vite/issues/21189)) ([4a7f8d4](https://github.com/vitejs/vite/commit/4a7f8d43e6b14b89fef278c3ea86f9e3f64b7fc2))
 
 ## <small>[7.2.1](https://github.com/vitejs/vite/compare/plugin-legacy@7.2.0...plugin-legacy@7.2.1) (2025-08-07)</small>
 ### Features