[OSB Documentation] Remove generate documentation and update SigV4 documentation for OSB (#5174)

* Remove generate documentation and update SigV4 documentation for OSB

Signed-off-by: Ian Hoang <hoangia@amazon.com>

* Remove generate link reference in index page

Signed-off-by: Ian Hoang <hoangia@amazon.com>

---------

Signed-off-by: Ian Hoang <hoangia@amazon.com>
Co-authored-by: Ian Hoang <hoangia@amazon.com>

_benchmark/commands/generate.md

@@ -1,24 +0,0 @@
----
-layout: default
-title: generate
-nav_order: 70
-parent: Command reference
----
-
-The `generate` command generates visualizations based on benchmark results. 
-
-## Usage
-
-The following example generates a time-series chart, which outputs into the `.benchmark` directory: 
-
-```
-opensearch-benchmark generate --chart-type="time-series" 
-```
-
-## Options
-
-The following options customize the visualization produced by the `generate` command: 
-
-- `--chart-spec-path`: Sets the path to the JSON files containing chart specifications that can be used to generate charts.
-- `--chart-type`: Generates the indicated chart type, either `time-series` or `bar`. Default is `time-series`.
-- `--output-path`: The path and name where the chart outputs. Default is `stdout`. 

_benchmark/commands/index.md

@@ -9,18 +9,17 @@ has_children: true
 
 This section provides a list of commands supported by OpenSearch Benchmark, including commonly used commands such as `execute-test` and `list`.
 
-- [compare]({{site.url}}{{site.baseurl}}/benchmark/commands/compare/) 
-- [download]({{site.url}}{{site.baseurl}}/benchmark/commands/download/) 
-- [execute-test]({{site.url}}{{site.baseurl}}/benchmark/commands/execute-test/) 
-- [generate]({{site.url}}{{site.baseurl}}/benchmark/commands/generate/) 
-- [info]({{site.url}}{{site.baseurl}}/benchmark/commands/info/) 
-- [list]({{site.url}}{{site.baseurl}}/benchmark/commands/list/) 
+- [compare]({{site.url}}{{site.baseurl}}/benchmark/commands/compare/)
+- [download]({{site.url}}{{site.baseurl}}/benchmark/commands/download/)
+- [execute-test]({{site.url}}{{site.baseurl}}/benchmark/commands/execute-test/)
+- [info]({{site.url}}{{site.baseurl}}/benchmark/commands/info/)
+- [list]({{site.url}}{{site.baseurl}}/benchmark/commands/list/)
 
 ## List of common options
 
-All OpenSearch Benchmark commands support the following options: 
+All OpenSearch Benchmark commands support the following options:
 
-- `--h` or `--help`: Provides options and other useful information about each command. 
-- `--quiet`: Hides as much of the results output as possible. Default is `false`. 
-- `--offline`: Indicates whether OpenSearch Benchmark has a connection to the internet. Default is `false`. 
+- `--h` or `--help`: Provides options and other useful information about each command.
+- `--quiet`: Hides as much of the results output as possible. Default is `false`.
+- `--offline`: Indicates whether OpenSearch Benchmark has a connection to the internet. Default is `false`.
 

_benchmark/tutorials/sigv4.md

@@ -14,7 +14,7 @@ OpenSearch Benchmark supports AWS Signature Version 4 authentication. To run Ben
 2. Set up the following environment variables for your IAM user:
 
    ```bash
-   OSB_AWS_ACCESS_KEY_ID=<<IAM USER AWS ACCESS KEY ID>
+   OSB_AWS_ACCESS_KEY_ID=<IAM USER AWS ACCESS KEY ID>
    OSB_AWS_SECRET_ACCESS_KEY=<IAM USER AWS SECRET ACCESS KEY>
    OSB_REGION=<YOUR REGION>
    OSB_SERVICE=aos