ACPICA: Namespace: Remove _PRP method support.

The _PRP method is not going to be a part of the ACPI standard. This patch
removes its support code introduced by the following commits:
 1. ACPICA: Predefined names: Add support for the _PRP method.
 2. ACPICA: Update for _PRP predefined name.
 3. ACPICA: Add support for _LPD and _PRP methods.
 4. ACPICA: Back port of _PRP update.

Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

drivers/acpi/acpica/acpredef.h

@@ -702,12 +702,6 @@ const union acpi_predefined_info acpi_gbl_predefined_methods[] = {
 	  METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}},	/* Variable-length (Refs) */
 	PACKAGE_INFO(ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0),
 
-	{{"_PRP", METHOD_0ARGS,
-	  METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}},	/* Variable-length (Pkgs) each: 1 Str, 1 Int/Str/Pkg */
-	PACKAGE_INFO(ACPI_PTYPE2, ACPI_RTYPE_STRING, 1,
-		     ACPI_RTYPE_INTEGER | ACPI_RTYPE_STRING |
-		     ACPI_RTYPE_PACKAGE | ACPI_RTYPE_REFERENCE, 1, 0),
-
 	{{"_PRS", METHOD_0ARGS,
 	  METHOD_RETURNS(ACPI_RTYPE_BUFFER)}},