Add support for common yang-library code between restconf and netconf

Makefile.am

@@ -3,25 +3,19 @@ apteryx_rest_SOURCES = main.c fcgi.c rest.c yang-library.c rpc.c api_html.c logg
 apteryx_rest_CFLAGS = @LIBFCGI_CFLAGS@ @APTERYX_XML_CFLAGS@ @JANSSON_CFLAGS@ @LIBXML2_CFLAGS@ @LUA_CFLAGS@ @APTERYX_CFLAGS@ @GLIB_CFLAGS@
 apteryx_rest_LDADD = @LIBFCGI_LIBS@ @APTERYX_XML_LIBS@ @JANSSON_LIBS@ @LIBXML2_LIBS@ @LUA_LIBS@ @APTERYX_LIBS@ @GLIB_LIBS@
 
-EXTRA_DIST = models/ietf-yang-library.yang models/ietf-restconf-monitoring.yang
-BUILT_SOURCES = models/ietf-yang-library.h models/ietf-restconf-monitoring.h models/ietf-yang-library.xml models/ietf-restconf-monitoring.xml api_html.c
+EXTRA_DIST = models/ietf-restconf-monitoring.yang
+BUILT_SOURCES = models/ietf-restconf-monitoring.h models/ietf-restconf-monitoring.xml api_html.c
 CLEANFILES = $(BUILT_SOURCES)
 
-include_HEADERS = models/ietf-yang-library.h models/ietf-restconf-monitoring.h
+include_HEADERS = models/ietf-restconf-monitoring.h
 schemadir = $(destdir)/etc/apteryx/schema
-schema_DATA = models/ietf-yang-library.xml models/ietf-restconf-monitoring.xml
+schema_DATA = models/ietf-restconf-monitoring.xml
 
 api_html.c: api.html Makefile
 	@echo '__asm__(".align 8; .global api_html; api_html: .incbin \"api.html\"; .byte 0;");' > api_html.c
 
-models/ietf-yang-library.h: models/ietf-yang-library.yang
-	$(PYANG) -p . -f cpaths -o $@ $<
-
 models/ietf-restconf-monitoring.h: models/ietf-restconf-monitoring.yang
 	$(PYANG) -p . -f cpaths -o $@ $<
 
-models/ietf-yang-library.xml: models/ietf-yang-library.yang
-	$(PYANG) -p . -f apteryx-xml $< > $@
-
 models/ietf-restconf-monitoring.xml: models/ietf-restconf-monitoring.yang
 	$(PYANG) -p . -f apteryx-xml $< > $@

internal.h

@@ -116,7 +116,6 @@ void rest_api (req_handle handle, int flags, const char *rpath, const char *path
                const char *remote_addr, const char *remote_user,
                const char *data, int length);
 void rest_shutdown (void);
-void yang_library_create (sch_instance *schema);
 void restconf_monitoring_create (sch_instance *schema);
 
 /* RPC */