## Summary
- Remove unused `set_rotation_config` and `apply_rotation` methods from
`AscendW4A4LaosDynamicLinearMethod`
- Remove unused `rotation_type` field and associated conditional
quantization parameters (`heads_rotation`, `kronecker_rotation_n`,
`kronecker_rotation_m`)
These rotation-related functions and parameters are never called in the
current W4A4 LAOS dynamic quantization workflow.
- vLLM version: v0.15.0
- vLLM main:
d7e17aaacd
Signed-off-by: SlightwindSec <slightwindsec@gmail.com>