Remove unused variable

image.c

@@ -551,13 +551,12 @@ loadImage(Buffer *buf, int flag)
 	}
 #else /* !DONT_CALL_GC_AFTER_FORK */
 	if ((cache->pid = fork()) == 0) {
-	    Buffer *b;
 	    /*
 	     * setup_child(TRUE, 0, -1);
 	     */
 	    setup_child(FALSE, 0, -1);
 	    image_source = cache->file;
-	    b = loadGeneralFile(cache->url, cache->current, NULL, 0, NULL);
+	    loadGeneralFile(cache->url, cache->current, NULL, 0, NULL);
 	    /* TODO make sure removing this didn't break anything
 	    if (!b || !b->real_type || strncasecmp(b->real_type, "image/", 6))
 		unlink(cache->file);