s390x: build fedora binaries for peerpod

Fixes: confidential-containers#1640

Signed-off-by: Qi Feng Huo <huoqif@cn.ibm.com>

podvm/Dockerfile.podvm_builder.fedora

@@ -20,7 +20,7 @@ RUN dnf groupinstall -y 'Development Tools' 'Development Libraries' && \
     dnf install -y yum-utils gnupg git perl perl-core pkg-config libseccomp-devel gpgme-devel \
         device-mapper-devel unzip libassuan-devel \
         perl-FindBin openssl-devel tpm2-tss-devel \
-        clang which qemu-kvm qemu-system-s390x gcc-s390x-linux-gnu && \
+        clang which qemu-kvm && \
     dnf clean all
 
 ADD https://dl.google.com/go/go${GO_VERSION}.linux-${ARCH}.tar.gz go${GO_VERSION}.linux-${ARCH}.tar.gz