RSL_Emulation: Get rid of module param mp_rslem_patch_ipa_cid

This param is not needed anymore since new releases used in -latest don't
need to disable it.

Change-Id: I39e9c1986ea682d54dcb22b31798ca91f1677949
Related: OS#5042
diff --git a/library/RSL_Emulation.ttcn b/library/RSL_Emulation.ttcn
index 0a20459..cb8b763 100644
--- a/library/RSL_Emulation.ttcn
+++ b/library/RSL_Emulation.ttcn
@@ -34,13 +34,6 @@
 import from IPA_Types all;
 import from IPA_Emulation all;
 
-
-modulepar {
-	/* Work around switch for ttcn3-bts-test-latest, enables patching of IPA
-	 * stream ID in the "BSC" mode. See I5927f59a49724170a63e87be604973f7c9d5d8be. */
-	boolean mp_rslem_patch_ipa_cid := false;
-};
-
 /* General "base class" component definition, of which specific implementations
  * derive themselves by means of the "extends" feature */
 type component RSL_DchanHdlr {
@@ -419,19 +412,6 @@
 	return TrxConnMap[trx_nr];
 }
 
-/* Work around for a bug in osmo-bts when all transceivers use IPAC_PROTO_RSL_TRX0 */
-private function f_trx_conn_map_patch_ud(inout ASP_RSL_Unitdata ud)
-runs on RSL_Emulation_CT {
-	for (var integer i := 0; i < sizeof(TrxConnMap); i := i + 1) {
-		if (ud.conn_id == TrxConnMap[i]) {
-			ud.streamId := f_streamId_by_trx(i);
-			return; /* We're done */
-		}
-	}
-
-	testcase.stop("Failed to patch IPA stream ID in ASP RSL UD: ", ud);
-}
-
 private type record of ASP_RSL_Unitdata ASP_RSL_UDList;
 
 type component RSL_Emulation_CT {
@@ -587,17 +567,11 @@
 
 		/* Forward common channel management to the special port for it */
 		[] IPA_PT.receive(tr_ASP_RSL_UD(tr_RSL_MsgTypeT(?), sid := ?)) -> value rx_rsl {
-			if (not bts_role and mp_rslem_patch_ipa_cid) {
-				f_trx_conn_map_patch_ud(rx_rsl);
-			}
 			CCHAN_PT.send(rx_rsl);
 		}
 
 		/* Forward common channel management to the special port for it */
 		[] IPA_PT.receive(tr_ASP_RSL_UD(tr_RSL_MsgTypeC(?), sid := ?)) -> value rx_rsl {
-			if (not bts_role and mp_rslem_patch_ipa_cid) {
-				f_trx_conn_map_patch_ud(rx_rsl);
-			}
 			CCHAN_PT.send(rx_rsl);
 		}