drop unneccessary duplicate linking: osmo-bsc

Change-Id: Ia227abcaa7b1f808646aadb9f53ee2a669699c51
Reviewed-on: https://gerrit.osmocom.org/87
Tested-by: Jenkins Builder
Reviewed-by: Holger Freyther <holger@freyther.de>
diff --git a/openbsc/src/osmo-bsc/Makefile.am b/openbsc/src/osmo-bsc/Makefile.am
index 69b363b..4aa1803 100644
--- a/openbsc/src/osmo-bsc/Makefile.am
+++ b/openbsc/src/osmo-bsc/Makefile.am
@@ -16,7 +16,6 @@
 		 $(top_builddir)/src/libbsc/libbsc.a \
 		 $(top_builddir)/src/libtrau/libtrau.a \
 		 $(top_builddir)/src/libcommon/libcommon.a \
-		 $(top_builddir)/src/libcommon/libcommon.a \
 		 $(LIBOSMOSCCP_LIBS) $(LIBOSMOCORE_LIBS) \
 		 $(LIBOSMOGSM_LIBS) $(LIBOSMOVTY_LIBS) $(LIBOSMOCTRL_LIBS) \
 		 $(COVERAGE_LDFLAGS) $(LIBOSMOABIS_LIBS)