[][openwrt][common][bsp][Remove garbage file]

[Description]
Remove mwctl
This reverts commit 1ed2be21647f56dd680d194acd26da0a9844d9f2.

[Release-log]
N/A

Change-Id: I648ded1ed2983d74c783d4695087c2140f80aea7
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/8590919
1 file changed