there is no libfbembed module

Change-Id: I9c95b826fb3b48a4430fe9e869b1e3fa45682574
diff --git a/RepositoryModule_build.mk b/RepositoryModule_build.mk
index e1f3b8f..65cbd69 100644
--- a/RepositoryModule_build.mk
+++ b/RepositoryModule_build.mk
@@ -73,7 +73,6 @@ $(eval $(call gb_Module_add_moduledirs,cross_toolset,\
			framework \
			harfbuzz \
			lcms2 \
			$(call gb_Helper_optional,FIREBIRD,libfbembed) \
			linguistic \
			nss \
			package \