remove un-necessary #pragma pack(1) and clean up doxgen format.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@6437 6f19259b-4bc3-4df7-8a09-765794883524

MdePkg/Include/IndustryStandard/Usb.h

@@ -62,7 +62,6 @@
 //
 // USB standard descriptors and reqeust
 //
-#pragma pack(1)
 
 ///
 /// Format of Setup Data for USB Device Requests
@@ -151,9 +150,6 @@ typedef struct {
   CHAR16          String[1];
 } EFI_USB_STRING_DESCRIPTOR;
 
-#pragma pack()
-
-
 typedef enum {
   //
   // USB request type
@@ -339,6 +335,7 @@ typedef struct hid_class_descriptor {
   UINT8   DescriptorType;
   UINT16  DescriptorLength;
 } EFI_USB_HID_CLASS_DESCRIPTOR;
+#pragma pack()
 
 ///
 /// The HID descriptor identifies the length and type
@@ -353,6 +350,4 @@ typedef struct hid_descriptor {
   EFI_USB_HID_CLASS_DESCRIPTOR  HidClassDesc[1];
 } EFI_USB_HID_DESCRIPTOR;
 
-#pragma pack()
-
 #endif