Remove ARCH_ARM.

Change-Id: Ic3014aa01f82204b75c54ab3f7afa3a44890e02e
diff --git a/core/combo/include/arch/linux-arm/AndroidConfig.h b/core/combo/include/arch/linux-arm/AndroidConfig.h
index c38fc8a..eec05e2 100644
--- a/core/combo/include/arch/linux-arm/AndroidConfig.h
+++ b/core/combo/include/arch/linux-arm/AndroidConfig.h
@@ -68,11 +68,6 @@
 #define HAVE_LIBC_SYSTEM_PROPERTIES 1
 
 /*
- * What CPU architecture does this platform use?
- */
-#define ARCH_ARM
-
-/*
  * sprintf() format string for shared library naming.
  */
 #define OS_SHARED_LIB_FORMAT_STR    "lib%s.so"