V4L/DVB (5639a): Fix dst usage count

Signed-off-by: Manu Abraham <manu@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

drivers/media/dvb/bt8xx/dst.c

@@ -1721,9 +1721,6 @@ static void dst_release(struct dvb_frontend *fe)
 		symbol_put(dst_ca_attach);
 #endif
 	}
-#ifdef CONFIG_DVB_CORE_ATTACH
-	symbol_put(dst_attach);
-#endif
 	kfree(state);
 }