media: dmx.h: get rid of DMX_SET_SOURCE

No driver uses this ioctl, nor it is documented anywhere.

So, get rid of it.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

Documentation/media/uapi/dvb/dmx-set-source.rst

@@ -1,44 +0,0 @@
-.. -*- coding: utf-8; mode: rst -*-
-
-.. _DMX_SET_SOURCE:
-
-==============
-DMX_SET_SOURCE
-==============
-
-Name
-----
-
-DMX_SET_SOURCE
-
-
-Synopsis
---------
-
-.. c:function:: int ioctl(fd, DMX_SET_SOURCE, struct dmx_source *src)
-    :name: DMX_SET_SOURCE
-
-
-Arguments
----------
-
-
-``fd``
-    File descriptor returned by :c:func:`open() <dvb-dmx-open>`.
-
-``src``
-   Undocumented.
-
-
-Description
------------
-
-.. note:: This ioctl is undocumented. Documentation is welcome.
-
-
-Return Value
-------------
-
-On success 0 is returned, on error -1 and the ``errno`` variable is set
-appropriately. The generic error codes are described at the
-:ref:`Generic Error Codes <gen-errors>` chapter.

Documentation/media/uapi/dvb/dmx_fcalls.rst

@@ -21,6 +21,5 @@ Demux Function Calls
     dmx-get-event
     dmx-get-stc
     dmx-get-pes-pids
-    dmx-set-source
     dmx-add-pid
     dmx-remove-pid

Documentation/media/uapi/dvb/dmx_types.rst

@@ -197,23 +197,3 @@ struct dmx_stc
 	unsigned int base;  /* output: divisor for stc to get 90 kHz clock */
 	__u64 stc;      /* output: stc in 'base'*90 kHz units */
     };
-
-
-
-enum dmx_source
-===============
-
-.. c:type:: dmx_source
-
-.. code-block:: c
-
-    typedef enum dmx_source {
-	DMX_SOURCE_FRONT0 = 0,
-	DMX_SOURCE_FRONT1,
-	DMX_SOURCE_FRONT2,
-	DMX_SOURCE_FRONT3,
-	DMX_SOURCE_DVR0   = 16,
-	DMX_SOURCE_DVR1,
-	DMX_SOURCE_DVR2,
-	DMX_SOURCE_DVR3
-    } dmx_source_t;