this single-use macro doesn't belong there

src/modules/autoseed.c

@@ -922,6 +922,8 @@ static void oceans_around(region * r, region * rn[])
   }
 }
 
+#define SWAP_INTS(a, b) { a^=b; b^=a; a^=b; }
+
 static void smooth_island(region_list * island)
 {
   region *rn[MAXDIRECTIONS];

src/util/goodies.h

@@ -53,7 +53,6 @@ extern "C" {
 #define HASH1 JENKINS_HASH1
 #define HASH2 JENKINS_HASH2
 
-#define SWAP_INTS(a, b) { a^=b; b^=a; a^=b; }
 #ifdef __cplusplus
 }
 #endif