build: Remove bogus depends from ipaccess-config

The code does not use libmsc and doesn't use dlsym/dlopen etc. So
let us remove LIBRARY_DL as dependency.
diff --git a/openbsc/src/ipaccess/Makefile.am b/openbsc/src/ipaccess/Makefile.am
index ad92e15..07ab9e5 100644
--- a/openbsc/src/ipaccess/Makefile.am
+++ b/openbsc/src/ipaccess/Makefile.am
@@ -17,11 +17,10 @@
 
 # FIXME: resolve the bogus dependencies patched around here:
 ipaccess_config_LDADD = $(top_builddir)/src/libbsc/libbsc.a \
-			$(top_builddir)/src/libmsc/libmsc.a \
 			$(top_builddir)/src/libbsc/libbsc.a \
 			$(top_builddir)/src/libtrau/libtrau.a \
 			$(top_builddir)/src/libcommon/libcommon.a \
-			$(LIBRARY_DL) -ldbi $(LIBCRYPT) $(OSMO_LIBS)
+			$(LIBCRYPT) $(OSMO_LIBS)
 
 ipaccess_proxy_SOURCES = ipaccess-proxy.c
 ipaccess_proxy_LDADD = $(top_builddir)/src/libbsc/libbsc.a \