llvm-project

ef3ce0dc - [Github] Remove redundant 'START_REV', 'END_REV' env variables (NFC) (#154218)

[Github] Remove redundant 'START_REV', 'END_REV' env variables (NFC) (#154218) After https://github.com/llvm/llvm-project/pull/133023, `START_REV` and `END_REV` env variables became redundant.