Maint: Remove CYBERGHOST_GROUP (change)

- It does not make any sense with newer server data
- It was to be deprecated anyway

internal/configuration/cyberghost.go

@@ -16,12 +16,6 @@ func (settings *Provider) readCyberghost(r reader) (err error) {
 		return err
 	}
 
-	settings.ServerSelection.Groups, err = r.env.CSVInside("CYBERGHOST_GROUP",
-		constants.CyberghostGroupChoices(servers))
-	if err != nil {
-		return fmt.Errorf("environment variable CYBERGHOST_GROUP: %w", err)
-	}
-
 	settings.ServerSelection.Countries, err = r.env.CSVInside("COUNTRY",
 		constants.CyberghostCountryChoices(servers),
 		params.RetroKeys([]string{"REGION"}, r.onRetroActive))

internal/configuration/provider_test.go

@@ -25,13 +25,11 @@ func Test_Provider_lines(t *testing.T) {
 				Name: constants.Cyberghost,
 				ServerSelection: ServerSelection{
 					VPN:       constants.OpenVPN,
-					Groups:    []string{"group"},
 					Countries: []string{"a", "El country"},
 				},
 			},
 			lines: []string{
 				"|--Cyberghost settings:",
-				"   |--Server groups: group",
 				"   |--Countries: a, El country",
 				"   |--OpenVPN selection:",
 				"      |--Protocol: udp",

internal/configuration/selection.go

@@ -15,9 +15,6 @@ type ServerSelection struct { //nolint:maligned
 	// Cyberghost, PIA, Protonvpn, Surfshark, Windscribe, Vyprvpn, NordVPN
 	Regions []string `json:"regions"`
 
-	// Cyberghost
-	Groups []string `json:"groups"`
-
 	// Fastestvpn, HideMyAss, IPVanish, IVPN, Mullvad, PrivateVPN, Protonvpn, PureVPN, VPNUnlimited
 	Countries []string `json:"countries"`
 	// HideMyAss, IPVanish, IVPN, Mullvad, PrivateVPN, Protonvpn, PureVPN, VPNUnlimited, Windscribe
@@ -51,10 +48,6 @@ func (selection ServerSelection) toLines() (lines []string) {
 		lines = append(lines, lastIndent+"Target IP address: "+selection.TargetIP.String())
 	}
 
-	if len(selection.Groups) > 0 {
-		lines = append(lines, lastIndent+"Server groups: "+commaJoin(selection.Groups))
-	}
-
 	if len(selection.Countries) > 0 {
 		lines = append(lines, lastIndent+"Countries: "+commaJoin(selection.Countries))
 	}