qmlls.exe installed when language server was not selected

Steps:

1. In the Maintenance Tool, select a Qt version for installation.
2. Make sure that the language server is not selected.
3. Install Qt.

Expected:

• qmlls.exe is not installed, or...
• qmlls.exe is installed but, when started, will output a message to STDERR and/or allow an LSP interaction that will lead to a graceful client disconnect.

Actual:

• qmlls.exe is installed.
• If started on the command line, will pop up a dialog window with an error message about the missing Qt6LanguageServer.dll.
• If connected to the VS language client, will generate a "connection lost" exception that is notified to the user.