Revert "librmnetctl: kw fixes"

This reverts commit 02ee4eabb80c8621ae55d08be91777ac949680d1.
This change causes only one rmnet device to be created.

CRs-Fixed: 2238540
Change-Id: I5054e3e0159716f9fe98144683fde4f63ce4d54a
2 files changed