chore(observability): remove argus alias and warning in readme (#683)

relates to STACKITCLI-50

Author: rubenhoenle

README.md

@@ -23,15 +23,6 @@ This CLI is in a BETA state. More services and functionality will be supported s
 Your feedback is appreciated! 
 Feel free to open [GitHub issues](https://github.com/stackitcloud/stackit-cli) to provide feature requests and bug reports.
 
-<a name="warning-new-stackit-idp"></a>
-
-> [!WARNING]
-> On August 26 2024, The STACKIT Argus service was renamed to STACKIT Observability.
->
-> This means that there is a new command group `observability`, which offers the same functionality as the deprecated `argus` command.
->
-> Please make sure to **update your STACKIT CLI to the latest version after August 26 2024** to ensure that you start using `observability` command.
-
 ## Installation
 
 Please refer to our [installation guide](./INSTALLATION.md) for instructions on how to install and get started using the STACKIT CLI.

internal/cmd/observability/observability.go

@@ -15,12 +15,11 @@ import (
 
 func NewCmd(p *print.Printer) *cobra.Command {
 	cmd := &cobra.Command{
-		Use:     "observability",
-		Aliases: []string{"argus"},
-		Short:   "Provides functionality for Observability",
-		Long:    "Provides functionality for Observability.",
-		Args:    args.NoArgs,
-		Run:     utils.CmdHelp,
+		Use:   "observability",
+		Short: "Provides functionality for Observability",
+		Long:  "Provides functionality for Observability.",
+		Args:  args.NoArgs,
+		Run:   utils.CmdHelp,
 	}
 	addSubcommands(cmd, p)
 	return cmd