Revise scripts that install RMR on CentOS/Debian

Drop the install-*-nng-rmr.sh scripts now that NNG is no longer used.
Drop the "3" from install-*-rmr3.sh bcos version 4 is now avail.
Update client projects appropriately.
Drop unused script cmake-package.sh entirely.

Signed-off-by: Lott, Christopher (cl778h) <cl778h@att.com>
Change-Id: Ied73a68d008faac9702b0fd365c0bf40c94756e6