Revert "hpwd watchdog mark page executable"

Revert "hpwd watchdog mark page executable"

Orabug: 13115973
This reverts commit e7494242c42201128204e50b2a707de335dd6334.
Bug fix is better covered with following upstream commit:

	commit da28179b4e90dda56912ee825c7eaa62fc103797
	Author: Mingarelli, Thomas <Thomas.Mingarelli@hp.com>
	Date:   Mon Nov 7 10:59:00 2011 +0100

	watchdog: hpwdt: Changes to handle NX secure bit in 32bit path

	commit e67d668e147c3b4fec638c9e0ace04319f5ceccd upstream.
	This patch makes use of the set_memory_x() kernel API in order
	to make necessary BIOS calls to source NMIs.

	This is needed for SLES11 SP2 and the latest upstream kernel as it appears
	the NX Execute Disable has grown in its control.

	Signed-off by: Thomas Mingarelli <thomas.mingarelli@hp.com>
	Signed-off by: Wim Van Sebroeck <wim@iguana.be>
	Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>