bash: 4.4.12 -> 4.4.18

- Drop bash-memleak-bug-fix-for-builtin-command-read.patch which has
  been accepted since 4.4.17

(From OE-Core rev: ec6da604012b54769db3371a8ed9ac0be4c9d0e6)

Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-extended/bash/bash_4.4.18.bb

@@ -0,0 +1,22 @@
+require bash.inc
+
+# GPLv2+ (< 4.0), GPLv3+ (>= 4.0)
+LICENSE = "GPLv3+"
+LIC_FILES_CHKSUM = "file://COPYING;md5=d32239bcb673463ab874e80d47fae504"
+
+SRC_URI = "${GNU_MIRROR}/bash/${BP}.tar.gz;name=tarball \
+           file://execute_cmd.patch;striplevel=0 \
+           file://mkbuiltins_have_stringize.patch \
+           file://build-tests.patch \
+           file://test-output.patch \
+           file://fix-run-coproc-run-heredoc-run-execscript-run-test-f.patch \
+           file://run-ptest \
+           file://fix-run-builtins.patch \
+           file://0001-help-fix-printf-format-security-warning.patch \
+           file://pathexp-dep.patch \
+           "
+
+SRC_URI[tarball.md5sum] = "518e2c187cc11a17040f0915dddce54e"
+SRC_URI[tarball.sha256sum] = "604d9eec5e4ed5fd2180ee44dd756ddca92e0b6aa4217bbab2b6227380317f23"
+
+BBCLASSEXTEND = "nativesdk"