Revert all the #pramga(1) related patches to r6434, we need to review all the updates carefully.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@6461 6f19259b-4bc3-4df7-8a09-765794883524

MdePkg/Include/IndustryStandard/Pci23.h

@@ -32,6 +32,7 @@
 //
 #define EFI_PCI_CAPABILITY_ID_PCIX    0x07
 
+#pragma pack(1)
 ///
 /// Capability EFI_PCI_CAPABILITY_ID_PCIX, defined in PCI-X Addendum to the PCI Local Bus Specification
 ///
@@ -52,6 +53,8 @@ typedef struct {
   UINT32                  SplitTransCtrlRegDn;
 } EFI_PCI_CAPABILITY_PCIX_BRDG;
 
+#pragma pack()
+
 #define PCI_CODE_TYPE_EFI_IMAGE       0x03
 
 #endif