Revert "Tweak headers slightly"

This reverts commit 0d826df4a532f2dc09a96a1b26924ba27ede501f.
Revert "Add to the include path to find local rfc3961 headers"

This reverts commit 99d59d46ec0dbc092fd2bfab35fe96697d62ea92.
Revert "Build rxgk into libuafs"

This reverts commit 97cd20b6d17ee5d8fa1b00045ea4300b24506ab3.
Revert "Build rfc3961 into libuafs"

This reverts commit 2844c2697ff88de6de3469a785fb825a80bea540.
Don't try to use rxgk for UKERNEL yet

The build is pretty messy.

Change-Id: I4704f6bafadd79a520e70db0ba0f65ce7a7b89a4