Revert "Add flag for distinguishing STS process launched from VS Code debug p…" (#18732)

This reverts commit 46cf89a.

Author: aasimkhan30

src/languageservice/serviceclient.ts

@@ -537,17 +537,6 @@ export default class SqlToolsServiceClient {
             serverArgs.push("--application-name", serviceName);
             serverArgs.push("--data-path", getAppDataPath());
 
-            /**
-             * Adds a dummy argument to sts to indicate that the server is launched
-             * from the VS Code debug panel. This helps distinguish the sts process
-             * in the process list (for .NET Core attach), especially when multiple
-             * instances of the extension are running. This is particularly useful on
-             * macOS, where the process path is not visible in the process list.
-             */
-            if (process.env[STS_OVERRIDE_ENV_VAR]) {
-                serverArgs.push("--vscode-debug-launch");
-            }
-
             // Enable SQL Auth Provider registration for Azure MFA Authentication
             const enableSqlAuthenticationProvider =
                 getEnableSqlAuthenticationProviderConfig();