bash: disable aclocal

Bash hand-maintains their aclocal.m4, so stop autoreconf from invoking aclocal
and overwriting it.  This means we can remove the kludge to copy aclocal.m4 to
acinclude.m4.

(From OE-Core rev: 57fe9f61dd4c43f8267b831c1b177ad67010d78c)

Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-extended/bash/bash.inc

@@ -6,7 +6,7 @@ DEPENDS = "ncurses bison-native virtual/libiconv"
 
 inherit autotools gettext texinfo update-alternatives ptest
 
-EXTRA_AUTORECONF += "--exclude=autoheader"
+EXTRA_AUTORECONF += "--exclude=autoheader --exclude=aclocal"
 EXTRA_OECONF = "--enable-job-control --without-bash-malloc"
 
 # If NON_INTERACTIVE_LOGIN_SHELLS is defined, all login shells read the
@@ -33,12 +33,6 @@ USERADD_PARAM_${PN}-ptest = "--create-home --user-group test"
 
 CACHED_CONFIGUREVARS += "headersdir=${includedir}/${PN}"
 
-do_configure_prepend () {
-	if [ ! -e ${S}/acinclude.m4 ]; then
-		cat ${S}/aclocal.m4 > ${S}/acinclude.m4
-	fi
-}
-
 do_compile_ptest () {
 	oe_runmake buildtest
 }