Ports: Remove some config.sub patches and download a fresh one if needed

All of these patches did the same thing, which is already in upstream
config.sub.
With this change, we need only add `use_fresh_config_sub=true` to
the package.sh file.
Note that this is not done automatically in case the port has a modified
config.sub file.

Ports/bash/package.sh

@@ -2,6 +2,8 @@
 port=bash
 version=5.1.16
 useconfigure=true
+use_fresh_config_sub=true
+config_sub_path=support/config.sub
 configopts=("--disable-nls" "--without-bash-malloc")
 files="https://ftpmirror.gnu.org/gnu/bash/bash-${version}.tar.gz bash-${version}.tar.gz 5bac17218d3911834520dad13cd1f85ab944e1c09ae1aba55906be1f8192f558"
 auth_type="sha256"

Ports/bash/patches/config.sub.patch

@@ -1,10 +0,0 @@
---- bash-5.1.8/support/config.sub	2020-11-18 19:40:12.000000000 +0000
-+++ bash-5.1.8.serenity/support/config.sub	2021-07-29 15:33:03.347306019 +0100
-@@ -1691,6 +1691,7 @@
- 	# The portable systems comes first.
- 	# Each alternative MUST end in a * to match a version number.
- 	gnu* | android* | bsd* | mach* | minix* | genix* | ultrix* | irix* \
-+	     | serenity* \
- 	     | *vms* | esix* | aix* | cnk* | sunos | sunos[34]* \
- 	     | hpux* | unos* | osf* | luna* | dgux* | auroraux* | solaris* \
- 	     | sym* |  plan9* | psp* | sim* | xray* | os68k* | v88r* \