Azure-docs: Drop line with ubuntu 17.10 as it's not available anymore

[SychevIgor]

ubuntu 17.10 no longer available in Azure. Please remove it from a list, to avoid any confusion.

Script to test it:
az vm image list-skus --location "north europe" --publisher "Canonical" --offer "UbuntuServer" --query "[].name"
[
"12.04.3-LTS",
"12.04.4-LTS",
"12.04.5-LTS",
"14.04.0-LTS",
"14.04.1-LTS",
"14.04.2-LTS",
"14.04.3-LTS",
"14.04.4-LTS",
"14.04.5-DAILY-LTS",
"14.04.5-LTS",
"16.04-DAILY-LTS",
"16.04-LTS",
"16.04.0-LTS",
"18.04-DAILY-LTS",
"18.04-LTS",
"18.10",
"18.10-DAILY",
"19.04-DAILY"
]

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Document Details

⚠ Do not edit this section. It is required for docs.microsoft.com ➟ GitHub issue linking.

• ID: 67fb132b-0dc3-d493-69bc-dc28b5bfd5e1
• Version Independent ID: ba5cb476-3e32-911f-0395-0cc8087d1ff3
• Content: Overview of cloud-init support for Linux virtual machines in Azure
• Content Source: articles/virtual-machines/linux/using-cloud-init.md
• Service: virtual-machines-linux
• GitHub Login: @RicksterCDN
• Microsoft Alias: rclaus

[Alberto-Vega]

Hi @SychevIgor Thanks for the feedback! I have assigned the issue to the content author to evaluate and update as appropriate.

[RicksterCDN]

document being updated by cloud-init team today.

please-close

[SychevIgor]

it take just 6 months.