library/GSM_RR_Types: do not duplicate Mobile Identity records

All the records related to Mobile Identity IE (see 3GPP TS 24.008,
section 10.5.1.4) are defined in [1], so there is no real need to
dumplicate them. Moreover, most of the related templates in
library/L3_Templates.ttcn are based on these records.

[1] titan.ProtocolModules.MobileL3_v13.4.0/src/MobileL3_CommonIE_Types.ttcn

Change-Id: I27c2743c59db770d6f7e9447dc8c1f539b228ced
diff --git a/sgsn/SGSN_Tests.ttcn b/sgsn/SGSN_Tests.ttcn
index eb1fff2..6c963fa 100644
--- a/sgsn/SGSN_Tests.ttcn
+++ b/sgsn/SGSN_Tests.ttcn
@@ -553,7 +553,7 @@
 }
 
 altstep as_mm_identity(integer ran_index := 0) runs on BSSGP_ConnHdlr {
-	var MobileL3_CommonIE_Types.MobileIdentityLV mi;
+	var MobileIdentityLV mi;
 	[is_gb(ran_index)] BSSGP[ran_index].receive(tr_GMM_ID_REQ('001'B)) {
 		mi := valueof(ts_MI_IMSI_LV(g_pars.imsi));
 		f_send_l3(ts_GMM_ID_RESP(mi), ran_index);
@@ -740,7 +740,7 @@
 }
 
 /* return a MobileIdentityLV: P-TMSI if we have one, IMSI otherwise */
-private function f_mi_get_lv() runs on BSSGP_ConnHdlr return MobileL3_CommonIE_Types.MobileIdentityLV {
+private function f_mi_get_lv() runs on BSSGP_ConnHdlr return MobileIdentityLV {
 	if (ispresent(g_pars.p_tmsi)) {
 		return valueof(ts_MI_TMSI_LV(g_pars.p_tmsi));
 	} else {
@@ -2153,7 +2153,7 @@
 /* Attempt an attach, but loose the Identification Request (IMEI) */
 private function f_TC_attach_no_imei_response(charstring id) runs on BSSGP_ConnHdlr {
 	var integer count_req := 0;
-	var MobileL3_CommonIE_Types.MobileIdentityLV mi;
+	var MobileIdentityLV mi;
 
 	f_send_l3(ts_GMM_ATTACH_REQ(f_mi_get_lv(), f_random_RAI(), true, false, omit, omit));
 
@@ -2199,7 +2199,7 @@
 /* Attempt an attach, but loose the Identification Request (IMSI) */
 private function f_TC_attach_no_imsi_response(charstring id) runs on BSSGP_ConnHdlr {
 	var integer count_req := 0;
-	var MobileL3_CommonIE_Types.MobileIdentityLV mi;
+	var MobileIdentityLV mi;
 
 	/* set p_tmsi to use it in Attach Req via f_mi_get_lv() */
 	g_pars.p_tmsi := 'c0000035'O;
@@ -2479,7 +2479,7 @@
 
 private function f_TC_attach_gmm_attach_req_while_gmm_attach(charstring id) runs on BSSGP_ConnHdlr {
 	var integer count_req := 0;
-	var MobileL3_CommonIE_Types.MobileIdentityLV mi;
+	var MobileIdentityLV mi;
 	var RoutingAreaIdentificationV rand_rai := f_random_RAI();
 	var PDU_L3_SGSN_MS l3_mt;