net: qualcomm: rmnet: Remove existing logic for bridge mode

This will be rewritten in the following patches.

CRs-Fixed: 2156182
Change-Id: I4f687ad5b143a92e6446287d37964f5b583cc1ac
Signed-off-by: David S. Miller <davem@davemloft.net>
Git-commit: d8bbb07a
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git


Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>