Remove unused parts of Makefile.am

These are causing issues whenever make clean is called, and we have no
docs we want to generate or install on the user system anyway yet.

Signed-off-by: Simo Sorce <[email protected]>

Author: simo5

Makefile.am

@@ -157,21 +157,6 @@ installgssntlmsspdirs::
     $(DESTDIR)$(libdir)/gssntlmssp \
     $(DESTDIR)$(mandir)
 
-if HAVE_DOXYGEN
-docs:
-	$(DOXYGEN) doxy.config
-else
-docs:
-	@echo "Doxygen not installed, cannot generate documentation"
-	@exit 1
-endif
-
-install-exec-hook: installgssntlmsspdirs
-	mkdir -p doc $(DESTDIR)/$(docdir); cp -a doc $(DESTDIR)/$(docdir)/
-
-clean-local:
-	rm -Rf doc
-
 CLEANFILES = *.X */*.X */*/*.X
 
 tests: all $(check_PROGRAMS)