debug: Remove dead log categories

Change-Id: Ibdfc39ead4f0c5e3a74321e9d2c9720ae1603541
Related: OS#2528
diff --git a/src/libcommon/gsup_test_client.c b/src/libcommon/gsup_test_client.c
index 5576292..8605040 100644
--- a/src/libcommon/gsup_test_client.c
+++ b/src/libcommon/gsup_test_client.c
@@ -201,7 +201,7 @@
 	struct imsi_op *io;
 	int rc;
 
-	DEBUGP(DGPRS, "Rx GSUP %s\n", osmo_hexdump(msgb_l2(msg), msgb_l2len(msg)));
+	DEBUGP(DLGSUP, "Rx GSUP %s\n", osmo_hexdump(msgb_l2(msg), msgb_l2len(msg)));
 
 	rc = osmo_gsup_decode(msgb_l2(msg), msgb_l2len(msg), &gsup_msg);
 	if (rc < 0)