Update commands.asciidoc (#1668)

Remove the `--non-interactive` flag from the `elastic-agent enroll` command because its not available

docs/en/ingest-management/commands.asciidoc

@@ -209,7 +209,6 @@ elastic-agent enroll --fleet-server-es <string>
                      [--force]
                      [--header <strings>]
                      [--help]
-                     [--non-interactive]
                      [--proxy-disabled]
                      [--proxy-header <strings>]
                      [--proxy-url <string>]
@@ -352,11 +351,6 @@ verified. The content is encrypted, but the certificate is not verified.
 +
 We strongly recommend that you use a secure connection.
 
-`--non-interactive`::
-Install {agent} in a non-interactive mode. This flag is helpful when
-using automation software or scripted deployments. If {agent} is
-already installed on the host, the installation will terminate.
-
 `--proxy-disabled`::
 Disable proxy support including environment variables.