Remove workaround for #4 on 5+

I've done some testing, and this is no longer required on Bash 5+!

Author: tianon

5.0/Dockerfile

@@ -79,15 +79,6 @@ RUN set -ex; \
 		rmdir bash-patches; \
 	fi; \
 	\
-# temporarily apply Alpine's patch to fix process substitution hanging in 4.4
-# see https://github.com/tianon/docker-bash/issues/4
-# and https://lists.gnu.org/archive/html/bug-bash/2017-12/msg00025.html
-# and https://github.com/alpinelinux/aports/commit/3239e62fb1c7968e923016358345a4dcc7e2f87d
-	wget -O alpine-fix-jobs.patch 'https://github.com/alpinelinux/aports/raw/6c1881db229de5cdc49bc974b7b99badc3e187aa/main/bash/fix-jobs.patch'; \
-	echo '79473c41e620d78d25139b56c37d18adac5c03dc28939f218729dfcd3558d8cbac5e83db814ffd27aa833cd3e55f81aad26aaf62af3688c927d8ac2a4172eaa4 *alpine-fix-jobs.patch' | sha512sum -c -; \
-	patch --directory=/usr/src/bash --input="$PWD/alpine-fix-jobs.patch" --strip=1; \
-	rm alpine-fix-jobs.patch; \
-	\
 	cd /usr/src/bash; \
 	gnuArch="$(dpkg-architecture --query DEB_BUILD_GNU_TYPE)"; \
 # update "config.guess" and "config.sub" to get more aggressively inclusive architecture support