Remove unused OpenBSC leftover 'openbscdefines.h'

Change-Id: Iafc9f387a07f1eba66d291a84017e7dee56c4cb7

include/osmocom/bsc/Makefile.am

@@ -46,7 +46,6 @@ noinst_HEADERS = \
 	neighbor_ident.h \
 	network_listen.h \
 	nm_common_fsm.h \
-	openbscdefines.h \
 	osmo_bsc.h \
 	osmo_bsc_grace.h \
 	osmo_bsc_rf.h \

include/osmocom/bsc/openbscdefines.h

@@ -1,34 +0,0 @@
-/* 
- * (C) 2009 by Holger Hans Peter Freyther <zecke@selfish.org>
- *
- * All Rights Reserved
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as published by
- * the Free Software Foundation; either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- *
- */
-
-#ifndef OPENBSCDEFINES_H
-#define OPENBSCDEFINES_H
-
-#ifdef BUILDING_ON_WINDOWS
-    #ifdef BUILDING_OPENBSC
-        #define BSC_API __declspec(dllexport)
-    #else
-        #define BSC_API __declspec(dllimport)
-    #endif
-#else
-    #define BSC_API __attribute__((visibility("default")))
-#endif
-
-#endif