ms: Remove unneeded bts!=NULL check

The ms_alloc function is expected to always have a proper bts object
passed, since an ms is always attached at a BTS.

Change-Id: I10b3c94dcb2fed4bff40b1ab7ea455175cf77ce4
diff --git a/src/gprs_ms.c b/src/gprs_ms.c
index 3167dee..63f454f 100644
--- a/src/gprs_ms.c
+++ b/src/gprs_ms.c
@@ -90,6 +90,7 @@
 struct GprsMs *ms_alloc(struct gprs_rlcmac_bts *bts, uint32_t tlli)
 {
 	struct GprsMs *ms = talloc_zero(tall_pcu_ctx, struct GprsMs);
+	OSMO_ASSERT(bts);
 
 	talloc_set_destructor(ms, ms_talloc_destructor);
 
@@ -116,8 +117,7 @@
 
 	ms_set_mode(ms, GPRS);
 
-	if (ms->bts)
-		codel_interval = the_pcu->vty.llc_codel_interval_msec;
+	codel_interval = the_pcu->vty.llc_codel_interval_msec;
 
 	if (codel_interval != LLC_CODEL_DISABLE) {
 		if (codel_interval == LLC_CODEL_USE_DEFAULT)