contribs: no need to copy contrib m4 files

VLC doesn't use foreign M4 macros anymore

extras/contrib/contrib.mak

@@ -38,12 +38,6 @@ all: $(TARGETALL)
 
 using-src:
 	$(MAKE) -C build-src
-# Copy aclocal files
-# This is necessary for --missing aclocal to succeed after a
-# configure.ac/Makefile.am change in the vlc root dir
-	if test -e "$(PREFIX)/share/aclocal"; then \
-	    cp -Rf $(PREFIX)/share/aclocal/* $(VLCROOTDIR)/m4; \
-	fi
 
 ifdef HAVE_DARWIN_10
 	(cd $(PREFIX)/lib && sed -e 's%/usr/lib/libiconv.la%$(PREFIX)/lib/libiconv.la%g' -i.orig *.la && rm -f *.la.orig)