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/libarchive/package.sh

@@ -2,6 +2,7 @@
 port=libarchive
 version=3.5.2
 useconfigure=true
+use_fresh_config_sub=true
 configopts=("--without-xml2")
 files="https://libarchive.org/downloads/libarchive-${version}.tar.gz libarchive-${version}.tar.gz
 https://libarchive.org/downloads/libarchive-${version}.tar.gz.asc libarchive-${version}.tar.gz.asc"

Ports/libarchive/patches/fix-autoconf.patch

@@ -1,13 +0,0 @@
-diff --git a/build/autoconf/config.sub.orig b/build/autoconf/config.sub
-index 1d8e98bce..e1d397a3c 100755
---- a/build/autoconf/config.sub.orig
-+++ b/build/autoconf/config.sub
-@@ -1390,7 +1390,7 @@ case $os in
-	      | -powermax* | -dnix* | -nx6 | -nx7 | -sei* | -dragonfly* \
-	      | -skyos* | -haiku* | -rdos* | -toppers* | -drops* | -es* \
-	      | -onefs* | -tirtos* | -phoenix* | -fuchsia* | -redox* | -bme* \
--	      | -midnightbsd*)
-+	      | -midnightbsd* | -serenity*)
-	# Remember, each alternative MUST END IN *, to match a version number.
-		;;
-	-qnx*)