EDP: remove old system EDP framework (emmc support)

EDP: remove old system EDP framework (emmc support)

This reverts commit 32609d0a9896ec47c522fd4cd0ca11ff0d27f046.

Revised system edp software framework has been put in place. This
patch removes old system edp client support from emmc/microsd driver
code.

Bug 1431977

Change-Id: I419f3f243af54579a12417e3a12f841c8d925410
Signed-off-by: Timo Alho <talho@nvidia.com>
Reviewed-on: http://git-master/r/350404
GVS: Gerrit_Virtual_Submit
Reviewed-by: R Raj Kumar <rrajk@nvidia.com>
Reviewed-by: Juha Tukkinen <jtukkinen@nvidia.com>