Revert "tbf: Add GprsMs* argument to update() and use it in reuse_tbf"

This reverts commit 2272a83a13b57ea7e99fe96ac76e4ad892e19e90.

The modification is no longer needed, since the call to update has
been removed from reuse_tbf().

Conflicts:
	src/tbf_dl.cpp

Sponsored-by: On-Waves ehf
diff --git a/src/tbf.cpp b/src/tbf.cpp
index 006f66e..1d72ffc 100644
--- a/src/tbf.cpp
+++ b/src/tbf.cpp
@@ -263,24 +263,18 @@
 	talloc_free(tbf);
 }
 
-int gprs_rlcmac_tbf::update(GprsMs *ms_)
+int gprs_rlcmac_tbf::update()
 {
 	struct gprs_rlcmac_bts *bts_data = bts->bts_data();
-	int rc = -EINVAL;
+	int rc;
 
 	LOGP(DRLCMAC, LOGL_DEBUG, "********** TBF update **********\n");
 
 	if (direction != GPRS_RLCMAC_DL_TBF)
 		return -EINVAL;
 
-	if (!ms_)
-		ms_ = ms();
-
-	if (!ms_)
-		return -EINVAL;
-
 	tbf_unlink_pdch(this);
-	rc = bts_data->alloc_algorithm(bts_data, ms_, this, bts_data->alloc_algorithm_curst, 0);
+	rc = bts_data->alloc_algorithm(bts_data, ms(), this, bts_data->alloc_algorithm_curst, 0);
 	/* if no resource */
 	if (rc < 0) {
 		LOGP(DRLCMAC, LOGL_ERROR, "No resource after update???\n");
diff --git a/src/tbf.h b/src/tbf.h
index f6f13f7..7f1dd76 100644
--- a/src/tbf.h
+++ b/src/tbf.h
@@ -131,7 +131,7 @@
 
 	int rlcmac_diag();
 
-	int update(GprsMs *ms = NULL);
+	int update();
 	void handle_timeout();
 	void stop_timer();
 	void stop_t3191();