This reverts commit
c731b754b33ee68a06f475193f9f8db2b1f76ae9. The
changes I'm reverting were introduced because some translated Texinfo
documents (namely website drafts) missed a @documentlanguage, causing
extract_texi_filenames to mess up xref-map files.
$(XREF_MAPS_DIR)/%.$(ISOLANG).xref-map: $(outdir)/%.texi $(XREF_MAPS_DIR)/%.xref-map
$(buildscript-dir)/extract_texi_filenames -o $(XREF_MAPS_DIR) $(XREF_MAP_FLAGS) --master-map-file=$(XREF_MAPS_DIR)/$*.xref-map $<
- touch -r $< $@
$(MASTER_TEXI_FILES): $(ITELY_FILES) $(ITEXI_FILES) $(outdir)/pictures