Remove root v-if's from repo components

https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/13391#note_37505179

I also wonder if there are components inside of here that themselves do v-show & v-if.

There are components within repo.vue that have root v-ifs that should be removed. We should probably look at all components and remove root v-ifs and make it a guideline. If we think thats right, that is.