Documentation: networking: ax25: drop doubled word

Drop the doubled word "and".

Signed-off-by: Randy Dunlap <[e-mail]>
Cc: Jonathan Corbet <[e-mail]>
Cc: [e-mail]
Cc: "David S. Miller" <[e-mail]>
Cc: Jakub Kicinski <[e-mail]>
Cc: [e-mail]
Cc: Ralf Baechle <[e-mail]>
Cc: [e-mail]
Signed-off-by: David S. Miller <[e-mail]>

Documentation/networking/ax25.rst

···
 
 To use the amateur radio protocols within Linux you will need to get a
 suitable copy of the AX.25 Utilities. More detailed information about
-AX.25, NET/ROM and ROSE, associated programs and and utilities can be
+AX.25, NET/ROM and ROSE, associated programs and utilities can be
 found on http://www.linux-ax25.org.
 
 There is an active mailing list for discussing Linux amateur radio matters