tools/xenstore: remove socket-only option from xenstore client

The Xenstore access commands (xenstore-*) have the possibility to limit
connection to Xenstore to a local socket (option "-s"). This is an
option making no sense at all, as either there is only a socket, so
the option would be a nop, or there is no socket at all (in case
Xenstore is running in a stubdom or the client is called in a domU),
so specifying the option would just lead to failure.

So drop that option completely.

Signed-off-by: Juergen Gross <jgross@suse.com>
Acked-by: Wei Liu <wl@xen.org>

docs/man/xenstore-chmod.1.pod

@@ -46,10 +46,6 @@ write, and set permissions).
 
 Apply the permissions to the key and all its I<children>.
 
-=item B<-s>
-
-Connect to the Xenstore daemon using a local socket only.
-
 =item B<-u>
 
 Apply the permissions to the key and all its I<parents>.

docs/man/xenstore-ls.1.pod

@@ -50,10 +50,6 @@ I<and> the permissions for any domain not explicitly listed in
 subsequent entries.  The key owner always has full access (read,
 write, and set permissions).
 
-=item B<-s>
-
-Connect to the Xenstore daemon using a local socket only.
-
 =back
 
 =head1 BUGS

docs/man/xenstore-read.1.pod

@@ -16,10 +16,6 @@ Read values of one or more Xenstore I<PATH>s.
 
 Prefix value with key name.
 
-=item B<-s>
-
-Connect to the Xenstore daemon using a local socket only.
-
 =item B<-R>
 
 Read raw value, skip escaping non-printable characters (\x..).

docs/man/xenstore-write.1.pod

@@ -13,10 +13,6 @@ provided to write them at once - in one Xenstore transaction.
 
 =over
 
-=item B<-s>
-
-Connect to the Xenstore daemon using a local socket only.
-
 =item B<-R>
 
 Write raw value, skip parsing escaped characters (\x..).

tools/xenstore/xenstore_client.c

@@ -530,7 +530,7 @@ main(int argc, char **argv)
 {
     struct xs_handle *xsh;
     xs_transaction_t xth = XBT_NULL;
-    int ret = 0, socket = 0;
+    int ret = 0;
     int prefix = 0;
     int tidy = 0;
     int upto = 0;
@@ -565,7 +565,6 @@ main(int argc, char **argv)
 	static struct option long_options[] = {
 	    {"help",    0, 0, 'h'},
 	    {"flat",    0, 0, 'f'}, /* MODE_ls */
-	    {"socket",  0, 0, 's'},
 	    {"prefix",  0, 0, 'p'}, /* MODE_read || MODE_list || MODE_ls */
 	    {"tidy",    0, 0, 't'}, /* MODE_rm */
 	    {"upto",    0, 0, 'u'}, /* MODE_chmod */
@@ -593,9 +592,6 @@ main(int argc, char **argv)
 		usage(mode, switch_argv, argv[0]);
 	    }
             break;
-        case 's':
-            socket = 1;
-            break;
 	case 'p':
 	    if ( mode == MODE_read || mode == MODE_list || mode == MODE_ls )
 		prefix = 1;
@@ -675,7 +671,7 @@ main(int argc, char **argv)
 	    max_width = ws.ws_col - 2;
     }
 
-    xsh = xs_open(socket ? XS_OPEN_SOCKETONLY : 0);
+    xsh = xs_open(0);
     if (xsh == NULL) err(1, "xs_open");
 
 again: