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/openssh/package.sh

@@ -6,11 +6,13 @@ files="https://github.com/openssh/openssh-portable/archive/9ca7e9c861775dd6c6312
 auth_type=sha256
 depends=("zlib" "openssl")
 useconfigure=true
+use_fresh_config_sub=true
 configopts=("--prefix=/usr/local" "--disable-utmp" "--disable-strip" "--sysconfdir=/etc/ssh" "--with-ssl-dir=${SERENITY_INSTALL_ROOT}/usr/local/lib")
 
 export LDFLAGS="-lcrypt -lcore"
 
 pre_configure() {
+    ensure_new_config_sub
     run autoreconf
 }
 

Ports/openssh/patches/config.sub.patch

@@ -1,13 +0,0 @@
-cd1bd18834e519c4787a4e3672fa0afdf1b22da7 Add Serenity to config.sub
-diff --git a/config.sub b/config.sub
-index 973a2980..cf386e5c 100755
---- a/config.sub
-+++ b/config.sub
-@@ -1339,6 +1339,7 @@ case $os in
- 	# Each alternative MUST end in a * to match a version number.
- 	# sysv* is not here because it comes later, after sysvr4.
- 	gnu* | bsd* | mach* | minix* | genix* | ultrix* | irix* \
-+		   | serenity* \
- 	     | *vms* | esix* | aix* | cnk* | sunos | sunos[34]*\
- 	     | hpux* | unos* | osf* | luna* | dgux* | auroraux* | solaris* \
- 	     | sym* | kopensolaris* | plan9* \