Replacing deprecated wfMsg* functions.

Replace wfMsg* functions and wfEmptyMsg function with wfMessage.
Removed $out that is no longer used.
Removed the rest of the code that $out referred to.

Bug: 68750
Change-Id: I86ef64e7ba513f195c00cf967daee67462538255
Signed-off-by: Bill Traynor <btraynor@gmail.com>