Cleaned unused variable

src/main.c

@@ -38,7 +38,7 @@ int main(int argc, char **argv)
     BoolArray_t *globalPreemptionSpace = NULL;
     IntArray_t *globalDrawingSpace = NULL;
     IntArray_t *arrowList = NULL;
-    IntArray_t *transitionTree = NULL;
+    //IntArray_t *transitionTree = NULL;
 
     globalPreemptionSpace = (BoolArray_t*) malloc(sizeof(BoolArray_t));
     globalPreemptionSpace->space = (bool*) malloc(sizeof(bool)*SPACE_SIZE);