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/yasm/package.sh

@@ -4,4 +4,5 @@ version=1.3.0
 files="https://www.tortall.net/projects/yasm/releases/yasm-${version}.tar.gz yasm-${version}.tar.gz 3dce6601b495f5b3d45b59f7d2492a340ee7e84b5beca17e48f862502bd5603f"
 auth_type="sha256"
 useconfigure=true
+use_fresh_config_sub=true
 makeopts=()

Ports/yasm/patches/config.sub.patch

@@ -1,29 +0,0 @@
---- yasm-1.3.0/config/original-config.sub	2021-04-13 19:32:43.345360128 +0100
-+++ yasm-1.3.0/config/config.sub	2021-04-13 19:33:00.992081544 +0100
-@@ -156,7 +156,7 @@
- 	-convergent* | -ncr* | -news | -32* | -3600* | -3100* | -hitachi* |\
- 	-c[123]* | -convex* | -sun | -crds | -omron* | -dg | -ultra | -tti* | \
- 	-harris | -dolphin | -highlevel | -gould | -cbm | -ns | -masscomp | \
--	-apple | -axis | -knuth | -cray | -microblaze)
-+	-apple | -axis | -knuth | -cray | -microblaze | serenity*)
- 		os=
- 		basic_machine=$1
- 		;;
-@@ -1368,7 +1368,7 @@
- 	      | -os2* | -vos* | -palmos* | -uclinux* | -nucleus* \
- 	      | -morphos* | -superux* | -rtmk* | -rtmk-nova* | -windiss* \
- 	      | -powermax* | -dnix* | -nx6 | -nx7 | -sei* | -dragonfly* \
--	      | -skyos* | -haiku* | -rdos* | -toppers* | -drops* | -es*)
-+	      | -skyos* | -haiku* | -rdos* | -toppers* | -drops* | -es* | serenity*)
- 	# Remember, each alternative MUST END IN *, to match a version number.
- 		;;
- 	-qnx*)
-@@ -1505,6 +1505,8 @@
- 		;;
- 	-none)
- 		;;
-+  -serenity*)
-+    ;;
- 	*)
- 		# Get rid of the `-' at the beginning of $os.
- 		os=`echo $os | sed 's/[^-]*-//'`