zenfone6: gpt-utils: Drop unnecessary include

* When using generated_kernel_headers including
  stdio.h will cause errors due to redefined macros.

Change-Id: I2f753a64f760b636be1325873e17697466fbf33d
diff --git a/gpt-utils/gpt-utils.cpp b/gpt-utils/gpt-utils.cpp
index a799eb4..1e8c9a2 100644
--- a/gpt-utils/gpt-utils.cpp
+++ b/gpt-utils/gpt-utils.cpp
@@ -32,7 +32,6 @@
 /******************************************************************************
  * INCLUDE SECTION
  ******************************************************************************/
-#include <stdio.h>
 #include <fcntl.h>
 #include <string.h>
 #include <errno.h>