media: Documentation/driver-api: media/cec-core: drop doubled word

Drop the doubled word "the".

Signed-off-by: Randy Dunlap <[e-mail]>
Cc: Jonathan Corbet <[e-mail]>
Cc: [e-mail]
Signed-off-by: Mauro Carvalho Chehab <[e-mail]>

Documentation/driver-api/media/cec-core.rst

···
 	$ cat einj.txt >error-inj
 
 The first callback is called when this file is read and it should show the
-the current error injection state::
+current error injection state::
 
 	int (*error_inj_show)(struct cec_adapter *adap, struct seq_file *sf);