cleaned up some junk in header files
diff --git a/frc971/input/gyro_board_data.h b/frc971/input/gyro_board_data.h
index 6f07a2a..fb47642 100644
--- a/frc971/input/gyro_board_data.h
+++ b/frc971/input/gyro_board_data.h
@@ -1,8 +1,6 @@
 #ifndef FRC971_INPUT_GYRO_BOARD_DATA_H_
 #define FRC971_INPUT_GYRO_BOARD_DATA_H_
 
-#include "aos/common/byteorder.h"
-
 namespace frc971 {
 
 #define DATA_STRUCT_NAME GyroBoardData
diff --git a/gyro_board/src/usb/data_struct.h b/gyro_board/src/usb/data_struct.h
index 64c9631..9e97950 100644
--- a/gyro_board/src/usb/data_struct.h
+++ b/gyro_board/src/usb/data_struct.h
@@ -1,6 +1,8 @@
 // This isn't really a header file. It's designed to be #included directly into
 // other code (possibly in a namespace or whatever), so it doesn't have include
 // guards.
+// This means that it can not #include anything else because it (sometimes) gets
+// #included inside a namespace.
 // In the gyro board code, fill_packet.h #includes this file.
 // In the fitpc code, frc971/input/gyro_board_data.h #includes this file.