Remove obsolete smd tool.

It's basically "echo" with a redirect, and it hasn't been touched since
cupcake. Could be replaced with a shell script if need be.

Change-Id: I75b663ea4be3d7cd9581faa6ef3979de28e68dfb

toolbox/Android.mk

@@ -63,7 +63,6 @@ OUR_TOOLS := \
     schedtop \
     sendevent \
     setprop \
-    smd \
     start \
     stop \
     top \

toolbox/smd.c

@@ -1,42 +0,0 @@
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <fcntl.h>
-#include <errno.h>
-#include <unistd.h>
-
-int smd_main(int argc, char **argv)
-{
-    int fd, len, r, port = 0;
-    char devname[32];
-    argc--;
-    argv++;
-
-    if((argc > 0) && (argv[0][0] == '-')) {
-        port = atoi(argv[0] + 1);
-        argc--;
-        argv++;
-    }
-
-    sprintf(devname,"/dev/smd%d",port);
-    fd = open(devname, O_WRONLY);
-    if(fd < 0) {
-        fprintf(stderr,"failed to open smd0 - %s\n",
-            strerror(errno));
-        return -1;
-    }
-    while(argc > 0) {
-        len = strlen(argv[0]);
-        r = write(fd, argv[0], len);
-        if(r != len) {
-            fprintf(stderr,"failed to write smd0 (%d) %s\n",
-                r, strerror(errno));
-            return -1;
-        }
-        argc--;
-        argv++;
-        write(fd, argc ? " " : "\r", 1);
-    }
-    close(fd);
-    return 0;       
-}