V4L/DVB (13684): Fix some cut-and-paste noise in dib0090.h

Remove duplicated line on driver

[mchehab@redhat.com: second hunk of the original patch were already applied by another patch - remove it]
Cc: Patrick Boettcher <pboettcher@kernellabs.com>
Signed-off-by: Duncan Gibb <dg@duncangibb.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/dvb/frontends/dib0090.h

@@ -57,7 +57,6 @@ extern u16 dib0090_get_wbd_offset(struct dvb_frontend *tuner);
 extern int dib0090_gain_control(struct dvb_frontend *fe);
 extern enum frontend_tune_state dib0090_get_tune_state(struct dvb_frontend *fe);
 extern int dib0090_set_tune_state(struct dvb_frontend *fe, enum frontend_tune_state tune_state);
-extern enum frontend_tune_state dib0090_get_tune_state(struct dvb_frontend *fe);
 extern void dib0090_get_current_gain(struct dvb_frontend *fe, u16 * rf, u16 * bb, u16 * rf_gain_limit, u16 * rflt);
 #else
 static inline struct dvb_frontend *dib0090_register(struct dvb_frontend *fe, struct i2c_adapter *i2c, struct dib0090_config *config)