Doc: Remove MOTD string from nsh shell on simulator

Signed-off-by: Alan C. Assis <acassis@gmail.com>

Documentation/guides/simulator.rst

@@ -63,12 +63,8 @@ Compiling
     .. code-block:: console
 
        $ ./nuttx
-       login: admin
-       password: Administrator
-       User Logged-in!
 
-       NuttShell (NSH) NuttX-9.1.0
-       MOTD: username=admin password=Administrator
+       NuttShell (NSH) NuttX-12.10.0
        nsh> help
        help usage:  help [-v] [<cmd>]
 

Documentation/platforms/sim/sim/boards/sim/README.txt

@@ -8,8 +8,7 @@ README
   provided that CONFIG_ETC_ROMFS=y.  These scripts provide a ROMFS volume
   that will be mounted at /etc and will look like this at run-time:
 
-    NuttShell (NSH) NuttX-7.31
-    MOTD: username=admin password=Administrator
+    NuttShell (NSH) NuttX-12.10.0
     nsh> ls -Rl /etc
     /etc:
      dr-xr-xr-x       0 .

Documentation/platforms/sim/sim/index.rst

@@ -33,12 +33,8 @@ Running
 When the compilation finishes it will create a ``nuttx`` binary, then run it::
 
     $ ./nuttx 
-    login: admin
-    password: Administrator
-    User Logged-in!
 
-    NuttShell (NSH) NuttX-10.1.0
-    MOTD: username=admin password=Administrator
+    NuttShell (NSH) NuttX-12.10.0
     nsh> ?
     help usage:  help [-v] [<cmd>]
 

Documentation/quickstart/configuring.rst

@@ -83,8 +83,7 @@ computer.
     .. code-block:: console
 
        $ ./nuttx
-       NuttShell (NSH) NuttX-8.2
-       MOTD: username=admin password=Administrator
+       NuttShell (NSH) NuttX-12.10.0
 
    Success!