Page https://kb.vmware.com/s/article/1308 doesn't mention VMware Server so I scrolled down to the generic section "Manually cleaning a Windows system".
Parts of this page have been updated for Windows 10 but parts have not been updated.
1. I am a member of the Local Administrators group.
2. No VMware services are listed in the Services snap-in, so there is nothing to stop.
3. None of my network adapters have the VMware Bridge Protocol in their list of protocols.
4. No VMware network adapters are listed in Device Manager. I showed hidden devices, which added the Microsoft Kernel Debug Network Adapter but no VMware adapters.
5. Delete folders...
5.1. Yes I had C:\Program Files(X86)\VMware\VMware Server, the only file in it was vmware-mount.exe, and I deleted the folder.
5.2. The page lists the wrong location for application data folders. I had folder C:\ProgramData\VMware\VMware Server containing several files and a subfolder, but I deleted the folder. My individual user's application data folders have some VMware files but they are dated 2014 and newer so I think they're for VMware Player not VMware Server and I didn't delete them.
5.3. The page lists the wrong location for Start Menu program groups too. The correct folder is C:\ProgramData\Microsoft\Windows\Start Menu\Programs but mine doesn't have any VMware files or subfolders in it.
6. My desktop doesn't have any VMware shortcut icons.
7. I hesitate to delete those files because they might be used by VMware Player.
8. I guess these deletions are to be made in Computer Management, Local Users and Groups, but my lists of users and groups do not include those VMware names.
9. Registry keys. I agree, this is where I need to delete something so that Windows will stop thinking that VMware server is installed. But the page doesn't have a section for VMware Server.
Control Panel - All Control Panel Items[*] - Programs and Features still lists VMware Server, installed in 2013, 195 megabytes.
[* I translated コントロール パネル\すべてのコントロール パネル項目\プログラムと機能。 Microsoft's English might differ.]