[media] bttv: move fini_bttv_i2c() from bttv-input.c to bttv-i2c.c

Like init_bttv_i2c(), fini_bttv_i2c() belongs to bttv-i2c.c.

Signed-off-by: Frank Schäfer <fschaefer.oss@googlemail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/pci/bt8xx/bttv-input.c

@@ -415,14 +415,6 @@ void init_bttv_i2c_ir(struct bttv *btv)
 #endif
 }
 
-int fini_bttv_i2c(struct bttv *btv)
-{
-	if (0 != btv->i2c_rc)
-		return 0;
-
-	return i2c_del_adapter(&btv->c.i2c_adap);
-}
-
 int bttv_input_init(struct bttv *btv)
 {
 	struct bttv_ir *ir;