fix: fileshare snapshot does not require setting RequestGiB

[andyzhangx]

What type of PR is this?

/kind bug

What this PR does / why we need it:

fix: fileshare snapshot does not require setting RequestGiB

RequestGiB is only required in file share creation, fileshare snapshot does not require setting RequestGiB

Which issue(s) this PR fixes:

Fixes #

Special notes for your reviewer:

Does this PR introduce a user-facing change?

fix: fileshare snapshot does not require setting RequestGiB

Additional documentation e.g., KEPs (Kubernetes Enhancement Proposals), usage docs, etc.:

fix: fileshare snapshot does not require setting RequestGiB

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: andyzhangx

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[MartinForReal]

only sigs.k8s.io/cloud-provider-azure/pkg/azclient is imported in master branch. kubernetes-sigs/azurefile-csi-driver@4244805. Is this code change necessary?

[andyzhangx]

only sigs.k8s.io/cloud-provider-azure/pkg/azclient is imported in master branch. kubernetes-sigs/azurefile-csi-driver@4244805. Is this code change necessary?

@MartinForReal I used this draft PR: https://github.com/kubernetes-sigs/azurefile-csi-driver/pull/1694/files#diff-16783eee590e3540091c5280f5da8860142564a600a7c2bd4a81f815941f5df9, it's working on master branch.

CreateFileShare func is a wrapper function

[andyzhangx]

/retest

[MartinForReal]

/lgtm

[k8s-ci-robot]

@andyzhangx: The following tests failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
pull-cloud-provider-azure-e2e-ccm-vmss-ip-lb-capz	78e8136	link	unknown	/test pull-cloud-provider-azure-e2e-ccm-vmss-ip-lb-capz
pull-cloud-provider-azure-e2e-ccm-vmss-multi-slb-capz	78e8136	link	unknown	/test pull-cloud-provider-azure-e2e-ccm-vmss-multi-slb-capz
pull-cloud-provider-azure-e2e-ccm-vmssflex-capz	78e8136	link	unknown	/test pull-cloud-provider-azure-e2e-ccm-vmssflex-capz

Full PR test history. Your PR dashboard. Please help us cut down on flakes by linking to an open issue when you hit one in your PR.

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