Remove duplicated CLI Options section (#678)

## Description
This PR fixes a bug in the docs where the "CLI options" section was
included twice.

This happened because [the original title-cased "CLI Options" header and
all other headers were modified to sentence-case in this
PR](#558) to match
[the docs style
guide](https://github.com/hashicorp/web-unified-docs/blob/main/docs/style-guide/general/titles-and-headings.md#use-sentence-case-for-titles-headings-and-navigation-labels).
The "CLI Options" header was in a section that should never be directly
edited because it is automatically generated by the update_website
Makefile target in the tfc-agent repo. Changing the casing of the header
in the docs repo directly make the update_website Makefile target not
work as expected. Instead of replacing the existing "CLI Options"
setting, it appended a new section because the header casing no longer
matched what was expected. The means the content under "CLI options" was
outdated and the content under "CLI Options" was the most up to date.

This PR cleans that up and makes the existing warning about not editing
this section a little easier to see. [I have a separate PR open to
update the header to sentence-casing directly in the tfc-agent
repo.](hashicorp/tfc-agent#1131)

## Screenshots
### Before
<img width="1098" height="325" alt="Screenshot 2025-08-01 at 3 23 59 PM"
src="https://github.com/user-attachments/assets/f23f3fbb-1867-4a71-8c30-ff1a90f502fa"
/>

### After
<img width="1093" height="332" alt="Screenshot 2025-08-04 at 4 01 00 PM"
src="https://github.com/user-attachments/assets/dfcfeb8d-10e7-43c5-ac06-effa1fc7c20e"
/>

## Related Links
1. [Jira
ticket](https://hashicorp.atlassian.net/browse/TFDN-1100?atlOrigin=eyJpIjoiOGRkMjk1YWI1NzJiNDhjYmJjNGZlODQ1ZTU5YzZmZmQiLCJwIjoiaiJ9)
2. [Related PR](hashicorp/tfc-agent#1131)

Author: lafentres

content/terraform-docs-agents/v1.23.x/docs/cloud-docs/agents/agents.mdx

@@ -175,11 +175,12 @@ Sample response:
 }
 ```
 
-<!-- 
+<!--
+  ⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️
   WARNING: This the CLI options section is auto-generated during agent release process. 
   Do not edit this section directly as your changes will be overwritten.
+  ⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️
 -->
-
 # CLI options
 
 
@@ -314,146 +315,6 @@ Sample response:
     Environment variable: `TFC_AGENT_REQUEST_FORWARDING`
 
 
-* `-h`:
-    Display this message and exit.
-
-* `-v`:
-    Display the version and exit.
-
-# CLI Options
-
-
-* `-name <name>`:
-    An optional user-specified name for the agent. This name may be used in
-    the HCP Terraform user interface to help easily identify the agent.
-
-    Default: `The agent's ephemeral ID, assigned during boot.`
-
-    Environment variable: `TFC_AGENT_NAME`
-
-
-* `-log-level <level>`:
-    The log verbosity expressed as a level string. Level options include
-    "trace", "debug", "info", "warn", and "error". Log levels have a
-    progressive level of data sensitivy. The "info", "warn", and "error" levels
-    are considered generally safe for log collection and don't include
-    sensitive information. The "debug" log level may include internal system
-    details, such as specific commands and arguments including paths to user
-    data on the local filesystem.  The "trace" log level is the most sensitive
-    and may include personally identifiable information, secrets,
-    pre-authorized internal URLs, and other sensitive material.
-
-    Default: `info`
-
-    Environment variable: `TFC_AGENT_LOG_LEVEL`
-
-
-* `-log-json`:
-    Enable JSON logging mode.
-
-    Default: `false`
-
-    Environment variable: `TFC_AGENT_LOG_JSON`
-
-
-* `-data-dir <path>`:
-    The path to a directory to store all agent-related data, including
-    Terraform configurations, cached Terraform release archives, etc. It is
-    important to ensure that the given directory is backed by plentiful
-    storage.
-
-    Default: `~/.tfc-agent`
-
-    Environment variable: `TFC_AGENT_DATA_DIR`
-
-
-* `-cache-dir <path>`:
-    The path to a directory to store all agent-related cache data, including
-    cached Terraform release archives, policy binaries, etc. It is important to
-    ensure that the given directory is backed by plentiful storage.
-
-    Default: `<data-dir>/cache`
-
-    Environment variable: `TFC_AGENT_CACHE_DIR`
-
-
-* `-single`:
-    Enable single mode. This causes the agent to handle at most one job and
-    immediately exit thereafter. Useful for running agents as ephemeral
-    containers, VMs, or other isolated contexts with a higher-level scheduler
-    or process supervisor.
-
-    Default: `false`
-
-    Environment variable: `TFC_AGENT_SINGLE`
-
-
-* `-auto-update`:
-    Controls automatic core updates behavior. Acceptable values include
-    "disabled", "patch", and "minor".
-
-    Default: `minor`
-
-    Environment variable: `TFC_AGENT_AUTO_UPDATE`
-
-
-* `-address <addr>`:
-    The HTTP or HTTPS address of the HCP Terraform API.
-
-    Default: `https://app.terraform.io`
-
-    Environment variable: `TFC_ADDRESS`
-
-
-* `-token <token>`:
-    The agent token to use when making requests to the HCP Terraform API.
-    This token must be obtained from the API or UI.  It is recommended to use
-    the environment variable whenever possible for configuring this setting due
-    to the sensitive nature of API tokens.
-
-    Required, no default.
-    Environment variable: `TFC_AGENT_TOKEN`
-
-
-* `-otlp-address <addr>`:
-    Optional host:port address of an OpenTelemetry collector to send telemetry
-    data to, including metrics and tracing. Currently the agent connects to
-    this address using the gRPC protocol.
-
-    Default: `none`
-
-    Environment variable: `TFC_AGENT_OTLP_ADDRESS`
-
-
-* `-otlp-cert-file <path>`:
-    Optional path to a client TLS certificate file to load. When present, the
-    given certificate is used to encrypt the client connection to the
-    OpenTelemetry collector. When omitted, client connections are not secure.
-
-    Default: `none`
-
-    Environment variable: `TFC_AGENT_OTLP_CERT_FILE`
-
-
-* `-accept <job_types>`:
-    Optional string of comma-separated job types that this agent may run.
-    Acceptable job types are "plan", "apply", "policy", "assessment", "ingress",
-    and "test". Do not put whitespace in between entries.
-
-    Default: `plan,apply,policy,assessment`
-
-    Environment variable: `TFC_AGENT_ACCEPT`
-
-
-* `-request-forwarding`:
-    Enable handling of forwarded HTTP requests. Enable this option only if you 
-    are using product features which require it.
-
-    Default: `false`
-
-    Environment variable: `TFC_AGENT_REQUEST_FORWARDING`
-
-
 * `-hyok`:
     Enable handling HYOK requests for generating, re-encrypting, or decrypting data
     keys using your KMS. This is not required to handle runs on HYOK workspaces.
@@ -469,4 +330,3 @@ Sample response:
 
 * `-v`:
     Display the version and exit.
-