ltq-vdsl-vr9-mei: convert platform driver .remove to .remove_new

ltq-vdsl-vr9-mei: convert platform driver .remove to .remove_new

Convert .remove to .remove_new so that it can be compatible with
both 6.6 and 6.12 kernels.

Signed-off-by: Shiji Yang <[email protected]>
Link: https://github.com/openwrt/openwrt/pull/18744
Signed-off-by: Robert Marko <[email protected]>
(cherry picked from commit 7d6ee4e415de12daa6be56279b686c64c6606353)
Signed-off-by: Nora Matthias Schiffer <[email protected]>
Link: https://github.com/openwrt/openwrt/pull/20440
Signed-off-by: Hauke Mehrtens <[email protected]>