ACPICA: Revert "Headers: Deploy #pragma pack (push) and (pop)."

This reverts commit aae576e5faefa8ba70647efa320d4747b6375f1e.
Push and Pop are not portable "enough", and caused problems for
some ACPICA customers.

Signed-off-by: Robert Moore <Robert.Moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
diff --git a/include/acpi/actbl1.h b/include/acpi/actbl1.h
index b7f0b0c..212c65d 100644
--- a/include/acpi/actbl1.h
+++ b/include/acpi/actbl1.h
@@ -44,8 +44,6 @@
 #ifndef __ACTBL1_H__
 #define __ACTBL1_H__
 
-#pragma pack(push)		/* Set default struct packing */
-
 /*******************************************************************************
  *
  * Additional ACPI Tables (1)
@@ -974,6 +972,8 @@
 
 #define ACPI_SRAT_CPU_ENABLED       (1)	/* 00: Use affinity structure */
 
-#pragma pack(pop)		/* Restore original struct packing */
+/* Reset to default packing */
+
+#pragma pack()
 
 #endif				/* __ACTBL1_H__ */