Execute Gitaly LFS call once when Vue file enabled

Igor Drozdovrequested to merge
id-call-lfs-once-when-vue-file-list-enabled into master

We don't need this call since we fetch it using GraphQL

I'm not sure whether it fixes #36864 (closed), but at least we're not introducing an extra call on enabling Vue file browser

Edited by Igor Drozdov

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