Revert "Add a different implementation of insmod.sh"

This reverts commit 99f848ed486b3698db398e63fb1613b9c17ec1b3.

Reason for revert: b/350767144#comment8

Bug: 350767144
Change-Id: I169af080656e8e871e3f6322b123eee8e681d530
8 files changed