This reverts commit 521cdcead0.
Sending CMD12 when r/w command has errors is taken care by
MMC block layer. So there is no need of this on >= 3.0 kernel.
Change-Id: Ibf9753b837b1c702be1790b017b8da4bc828d2b5
Signed-off-by: Sujit Reddy Thumma <sthumma@codeaurora.org>