[clang] [clang-format][NFC] AlignTokenSequence: Skip loop iteration (PR #68154)

[Owen Pan via cfe-commits]

https://github.com/owenca approved this pull request.

We should also update [this line](https://github.com/llvm/llvm-project/pull/68154/files#diff-13a957866eda585a177e1d10139b157956e9d82c40d2275b500c2b1bcb2ad8c0R452) to:
```
    assert(Shift > 0 || Changes[i].NewlinesBefore > 0 ||
```

https://github.com/llvm/llvm-project/pull/68154