Scrap unused variable.

src/elumens.cc

@@ -176,7 +176,7 @@ int pp_spi_parse_args( struct stuff **, int argc, char *argv[], void * ) {
     }
 
   } else if(!strcmp(subcmd, "chans")) {
-    int i, cno = argc>2 ? atoi(argv[2]) : spi.nchan;
+    int cno = argc>2 ? atoi(argv[2]) : spi.nchan;
     if(cno > COUNT(spi.chan) || cno < 1) {
 	msg("spi chans %d: must be in range 1..%d", cno, spi.nchan);
     } else {