[v0.98][Refactoring] Unify the use of unknown string

src/arm/midr.c

@@ -13,8 +13,6 @@
 #include "uarch.h"
 #include "soc.h"
 
-#define STRING_UNKNOWN    "Unknown"
-
 void init_cache_struct(struct cache* cach) {
   cach->L1i = emalloc(sizeof(struct cach));
   cach->L1d = emalloc(sizeof(struct cach));

src/arm/soc.c

@@ -9,7 +9,6 @@
 #include "../common/global.h"
 
 #define min(a,b) (((a)<(b))?(a):(b))
-#define STRING_UNKNOWN    "Unknown"
 #define ARRAY_SIZE(arr)     (sizeof(arr) / sizeof((arr)[0]))
 
 static char* soc_trademark_string[] = {

src/arm/uarch.c

@@ -7,8 +7,6 @@
 #include "uarch.h"
 #include "../common/global.h"
 
-#define STRING_UNKNOWN    "Unknown"
-
 // Data not available
 #define NA                   -1