doc: remove encoder/muxer/sinks docs from ffplay- and ffprobe-all

ffplay and ffprobe are read-only.
Signed-off-by: Timothy Gu <timothygu99@gmail.com>

doc/codecs.texi

@@ -1092,5 +1092,9 @@ instead of alpha. Default is 0.
 
 @c man end CODEC OPTIONS
 
+@ifclear config-writeonly
 @include decoders.texi
+@end ifclear
+@ifclear config-readonly
 @include encoders.texi
+@end ifclear

doc/devices.texi

@@ -17,5 +17,9 @@ for programmatic use.
 
 @c man end DEVICE OPTIONS
 
+@ifclear config-writeonly
 @include indevs.texi
+@end ifclear
+@ifclear config-readonly
 @include outdevs.texi
+@end ifclear

doc/ffplay.texi

@@ -212,6 +212,7 @@ Seek to percentage in file corresponding to fraction of width.
 
 @include config.texi
 @ifset config-all
+@set config-readonly
 @ifset config-avutil
 @include utils.texi
 @end ifset

doc/ffprobe.texi

@@ -599,6 +599,7 @@ DV, GXF and AVI timecodes are available in format metadata
 
 @include config.texi
 @ifset config-all
+@set config-readonly
 @ifset config-avutil
 @include utils.texi
 @end ifset

doc/formats.texi

@@ -183,6 +183,10 @@ The exact semantics of stream specifiers is defined by the
 @code{avformat_match_stream_specifier()} function declared in the
 @file{libavformat/avformat.h} header.
 
+@ifclear config-writeonly
 @include demuxers.texi
+@end ifclear
+@ifclear config-readonly
 @include muxers.texi
+@end ifclear
 @include metadata.texi