podman needs no install.tools

[tstromberg]

Works around build error I was seeing:

make[3]: Entering directory '/mnt/out/buildroot/output/build/podman-v1.0.0'                                                                  
touch .gopathok                                                                                                                                      
if [ ! -x "/mnt/out/buildroot/output/build/podman-v1.0.0/_output/bin/git-validation" ]; then \  
        go get -u github.com/vbatts/git-validation; \                                                                                                                                                            
fi                                                                                                                                                                                                               
if [ ! -x "/mnt/out/buildroot/output/build/podman-v1.0.0/_output/bin/gometalinter" ]; then \                                                                                                                     
        go get -u github.com/alecthomas/gometalinter; \                                                                                                                                                          
        cd /mnt/out/buildroot/output/build/podman-v1.0.0/_output/src/github.com/alecthomas/gometalinter; \                                                                                                       
        git checkout e8d801238da6f0dfd14078d68f9b53fa50a7eeb5; \                                                                                                                                                 
        go install github.com/alecthomas/gometalinter; \                                                                                                                                                         
        /mnt/out/buildroot/output/build/podman-v1.0.0/_output/bin/gometalinter --install; \                                                                                                                      
fi                                                                                                                                                                                                               
if [ ! -x "/mnt/out/buildroot/output/build/podman-v1.0.0/_output/bin/go-md2man" ]; then \                                                                                                                        
           go get -u github.com/cpuguy83/go-md2man; \                                                                                                                                                            
fi                                                                                                                                                                                                               
if [ ! -x "/mnt/out/buildroot/output/build/podman-v1.0.0/_output/bin/easyffjson" ]; then \                                                                                                                       
          go get -u github.com/mailru/easyjson/...; \                                                                                                                                                            
fi                                                                                                                                                                                                               
if [ ! -x "/mnt/out/buildroot/output/build/podman-v1.0.0/_output/bin/ginkgo" ]; then \                                                                                                                           
        go get -u github.com/onsi/ginkgo/ginkgo; \                                                                                                                                                               
fi                                                                                                                                                                                                               
go get github.com/onsi/gomega/...                                                                                                                                                                                
package github.com/cpuguy83/go-md2man/v2/md2man: cannot find package "github.com/cpuguy83/go-md2man/v2/md2man" in any of:                                                                                        
        /mnt/out/buildroot/output/host/lib/go/src/github.com/cpuguy83/go-md2man/v2/md2man (from $GOROOT)                                                                                                         
        /mnt/out/buildroot/output/build/podman-v1.0.0/_output/src/github.com/cpuguy83/go-md2man/v2/md2man (from $GOPATH)                                                                                         
make[3]: *** [.install.md2man] Error 1                                                                                                                                                                           
make[3]: *** Waiting for unfinished jobs....                                                                                                                                                                     
Makefile:293: recipe for target '.install.md2man' failed                                                                                                                                                         
Note: checking out 'e8d801238da6f0dfd14078d68f9b53fa50a7eeb5'.

Related issue: #3918

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: tstromberg

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[afbjorklund]

Good catch!