pdch: Drop unneeded notice log message in rcv pkt meas report

It's totally fine to receive Packet Measurement Report messages with no
SBA present, since the MS also sends measurements on PACCH while
transmitting data.

Related: OS#4719
Change-Id: I8f642d9cdeb342df7d5f2fa30516ea69554a6270
diff --git a/src/pdch.cpp b/src/pdch.cpp
index 856da75..b34f532 100644
--- a/src/pdch.cpp
+++ b/src/pdch.cpp
@@ -652,15 +652,8 @@
 
 void gprs_rlcmac_pdch::rcv_measurement_report(Packet_Measurement_Report_t *report, uint32_t fn)
 {
-	struct gprs_rlcmac_sba *sba;
-
-	sba = bts()->sba()->find(this, fn);
-	if (!sba) {
-		LOGP(DRLCMAC, LOGL_NOTICE, "MS send measurement "
-			"in packet resource request of single "
-			"block, but there is no resource request "
-			"scheduled! TLLI=0x%08x\n", report->TLLI);
-	} else {
+	struct gprs_rlcmac_sba *sba = bts()->sba()->find(this, fn);
+	if (sba) {
 		GprsMs *ms = bts()->ms_store().get_ms(report->TLLI);
 		if (!ms)
 			LOGP(DRLCMAC, LOGL_NOTICE, "MS send measurement "