Remove support for building rescue CD

This is not used for close to 20 years and is broken at least from Fedora 31

openssh.spec

@@ -49,18 +49,6 @@
 # rpm -ba|--rebuild --define "static_openssl 1"
 %{?static_openssl:%global static_libcrypto 1}
 
-# Is this a build for the rescue CD (without PAM, with MD5)? (1=yes 0=no)
-%global rescue 0
-%{?build_rescue:%global rescue 1}
-%{?build_rescue:%global rescue_rel rescue}
-
-# Turn off some stuff for resuce builds
-%if %{rescue}
-%global kerberos5 0
-%global libedit 0
-%global pam_ssh_agent 0
-%endif
-
 # Do not forget to bump pam_ssh_agent_auth release if you rewind the main package release to 1
 %global openssh_ver 8.3p1
 %global openssh_rel 4
@@ -70,7 +58,7 @@
 Summary: An open source implementation of SSH protocol version 2
 Name: openssh
 Version: %{openssh_ver}
-Release: %{openssh_rel}%{?dist}%{?rescue_rel}
+Release: %{openssh_rel}%{?dist}
 URL: http://www.openssh.com/portable.html
 #URL1: http://pamsshagentauth.sourceforge.net
 Source0: ftp://ftp.openbsd.org/pub/OpenBSD/OpenSSH/portable/openssh-%{version}.tar.gz
@@ -284,7 +272,7 @@ Requires: openssh = %{version}-%{release}
 %package -n pam_ssh_agent_auth
 Summary: PAM module for authentication with ssh-agent
 Version: %{pam_ssh_agent_ver}
-Release: %{pam_ssh_agent_rel}.%{openssh_rel}%{?dist}%{?rescue_rel}.1
+Release: %{pam_ssh_agent_rel}.%{openssh_rel}%{?dist}.1
 License: BSD
 
 %description
@@ -411,9 +399,6 @@ popd
 # the -fvisibility=hidden is needed for clean build of the pam_ssh_agent_auth
 # it is needed for lib(open)ssh build too since it is linked to the pam module too
 CFLAGS="$RPM_OPT_FLAGS -fvisibility=hidden"; export CFLAGS
-%if %{rescue}
-CFLAGS="$CFLAGS -Os"
-%endif
 %if %{pie}
 %ifarch s390 s390x sparc sparcv9 sparc64
 CFLAGS="$CFLAGS -fPIC"
@@ -459,11 +444,7 @@ fi
 	--with-systemd \
 	--with-default-pkcs11-provider=yes \
 	--with-security-key-builtin=yes \
-%if %{rescue}
-	--without-pam \
-%else
 	--with-pam \
-%endif
 %if %{WITH_SELINUX}
 	--with-selinux --with-audit=linux \
 	--with-sandbox=seccomp_filter \
@@ -608,13 +589,11 @@ test -f %{sysconfig_anaconda} && \
 %doc CREDITS ChangeLog OVERVIEW PROTOCOL* README README.platform README.privsep README.tun README.dns TODO
 %attr(0755,root,root) %dir %{_sysconfdir}/ssh
 %attr(0644,root,root) %config(noreplace) %{_sysconfdir}/ssh/moduli
-%if ! %{rescue}
 %attr(0755,root,root) %{_bindir}/ssh-keygen
 %attr(0644,root,root) %{_mandir}/man1/ssh-keygen.1*
 %attr(0755,root,root) %dir %{_libexecdir}/openssh
 %attr(2555,root,ssh_keys) %{_libexecdir}/openssh/ssh-keysign
 %attr(0644,root,root) %{_mandir}/man8/ssh-keysign.8*
-%endif
 
 %files clients
 %attr(0755,root,root) %{_bindir}/ssh
@@ -625,7 +604,6 @@ test -f %{sysconfig_anaconda} && \
 %dir %attr(0755,root,root) %{_sysconfdir}/ssh/ssh_config.d/
 %attr(0644,root,root) %config(noreplace) %{_sysconfdir}/ssh/ssh_config.d/50-redhat.conf
 %attr(0644,root,root) %{_mandir}/man5/ssh_config.5*
-%if ! %{rescue}
 %attr(0755,root,root) %{_bindir}/ssh-agent
 %attr(0755,root,root) %{_bindir}/ssh-add
 %attr(0755,root,root) %{_bindir}/ssh-keyscan
@@ -640,9 +618,7 @@ test -f %{sysconfig_anaconda} && \
 %attr(0644,root,root) %{_mandir}/man1/ssh-copy-id.1*
 %attr(0644,root,root) %{_mandir}/man8/ssh-pkcs11-helper.8*
 %attr(0644,root,root) %{_mandir}/man8/ssh-sk-helper.8*
-%endif
 
-%if ! %{rescue}
 %files server
 %dir %attr(0711,root,root) %{_var}/empty/sshd
 %attr(0755,root,root) %{_sbindir}/sshd
@@ -663,7 +639,6 @@ test -f %{sysconfig_anaconda} && \
 %attr(0644,root,root) %{_unitdir}/sshd-keygen@.service
 %attr(0644,root,root) %{_unitdir}/sshd-keygen.target
 %attr(0644,root,root) %{_tmpfilesdir}/openssh.conf
-%endif
 
 %files keycat
 %doc HOWTO.ssh-keycat