zenfone6: gpt-utils: Drop unnecessary include

* When using generated_kernel_headers including
  asm/byteorder.h will cause a warning due to
  unused static functions.

Change-Id: I2a74ec92487c13c4645048c96da8cb92b3cbd9f0
diff --git a/gpt-utils/gpt-utils.cpp b/gpt-utils/gpt-utils.cpp
index 89aa55f..b368fa4 100644
--- a/gpt-utils/gpt-utils.cpp
+++ b/gpt-utils/gpt-utils.cpp
@@ -46,7 +46,6 @@
 #include <limits.h>
 #include <dirent.h>
 #include <linux/kernel.h>
-#include <asm/byteorder.h>
 #include <map>
 #include <vector>
 #include <string>