media: Documentation: userspace-api/media: dvb/demux: drop doubled word

Drop the doubled word "and".
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: linux-doc@vger.kernel.org
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

Documentation/userspace-api/media/dvb/demux.rst

@@ -11,7 +11,7 @@ digital TV. If the driver and hardware supports, those filters are
 implemented at the hardware. Otherwise, the Kernel provides a software
 emulation.
 
-It can be accessed through ``/dev/adapter?/demux?``. Data types and and
+It can be accessed through ``/dev/adapter?/demux?``. Data types and
 ioctl definitions can be accessed by including ``linux/dvb/dmx.h`` in
 your application.