SGI-575: Remove incorrect inclusion of arm_def.h

The arm_def.h file has been removed in commit f6164aabe5b01
("SPM: Remove old interfaces and tests").

Change-Id: Ieba3c5ee6a1366fbda25241ab7d9639dc208a4a3
Signed-off-by: Sandrine Bailleux <sandrine.bailleux@arm.com>
diff --git a/plat/arm/sgi/common/include/sgi_base_platform_def.h b/plat/arm/sgi/common/include/sgi_base_platform_def.h
index 1591f07..8e025ab 100644
--- a/plat/arm/sgi/common/include/sgi_base_platform_def.h
+++ b/plat/arm/sgi/common/include/sgi_base_platform_def.h
@@ -7,8 +7,6 @@
 #ifndef SGI_BASE_PLATFORM_DEF_H
 #define SGI_BASE_PLATFORM_DEF_H
 
-#include <arm_def.h>
-
 /* Platform binary types for linking */
 #define PLATFORM_LINKER_FORMAT		"elf64-littleaarch64"
 #define PLATFORM_LINKER_ARCH		aarch64