Revert "scsi: ufs: Factor out ufshcd_read_desc_param"

This reverts commit e1928457.

Equivalent code delta is already presented on msm-4.9 as part of
commit [1].

Motivation to revert the change is because it is causing merge
conflicts on importing android-4.9.107 (42a730ad) into msm-4.9,
hence let's remove it before the merge.

[1] 833ea2a4 scsi: ufs: Factor out ufshcd_read_desc_param

Change-Id: I584d0de65c687f97cf69f75c68613bb15d89d21d
[bkolenichev@codeaurora.org: resolve trivial conflict]
Signed-off-by: Blagovest Kolenichev <bkolenichev@codeaurora.org>