Remove unused self-hosted test targets.

.github/workflows/selfhosted.yml

@@ -31,9 +31,7 @@ jobs:
           - fbsd10
           - fbsd12
           - fbsd13
-          # - hurd
           - minix3
-          # - nbsd2
           - nbsd3
           - nbsd4
           - nbsd8
@@ -46,7 +44,6 @@ jobs:
           - openindiana
           - openwrt-mips
           - openwrt-mipsel
-          # - rocky84
           - sol10
           - sol11
           - win10
@@ -65,11 +62,9 @@ jobs:
           - { os: nbsd8,  configs: pam }
           - { os: nbsd9,  configs: pam }
           - { os: openindiana, configs: pam }
-          # - { os: rocky84, configs: pam }
           - { os: sol10,  configs: pam }
           - { os: sol11,  configs: pam-krb5 }
           - { os: sol11,  configs: sol64 }
-          # - { os: sol11,  configs: sol64-pam }
           - { os: win10,  configs: cygwin-release }
     steps:
     - name: shutdown VM if running