Documentation: i2c: eliminate duplicated word

Drop doubled word "new".
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: linux-doc@vger.kernel.org
Cc: Wolfram Sang <wsa@kernel.org>
Cc: linux-i2c@vger.kernel.org
Link: https://lore.kernel.org/r/20200707180414.10467-10-rdunlap@infradead.orgSigned-off-by: Jonathan Corbet <corbet@lwn.net>

Documentation/i2c/upgrading-clients.rst

@@ -8,7 +8,7 @@ Introduction
 ------------
 
 This guide outlines how to alter existing Linux 2.6 client drivers from
-the old to the new new binding methods.
+the old to the new binding methods.
 
 
 Example old-style driver