Remove scan dependencies git hook (nhs-england-tools#132)

## Description

There is not much benefit in running a potentially outdated CVE check
locally, especially considering that the GitHub Action always performs a
check against the latest version.

- Fixes nhs-england-tools#128 

## Context

Grype [updates its
database](https://github.com/anchore/grype#data-staleness) at the first
run or every 5 days. The size is approximately 1GB. It may take minutes
for the scan dependencies git hook to complete. This is not a good user
experience.

## Type of changes

- [x] Refactoring (non-breaking change)
- [ ] New feature (non-breaking change which adds functionality)
- [ ] Breaking change (fix or feature that would change existing
functionality)
- [x] Bug fix (non-breaking change which fixes an issue)

## Checklist

- [x] I am familiar with the [contributing
guidelines](../docs/CONTRIBUTING.md)
- [x] I have followed the code style of the project
- [ ] I have added tests to cover my changes
- [x] I have updated the documentation accordingly
- [ ] This PR is a result of pair or mob programming

---

## Sensitive Information Declaration

To ensure the utmost confidentiality and protect your and others
privacy, we kindly ask you to NOT including [PII (Personal Identifiable
Information) / PID (Personal Identifiable
Data)](https://digital.nhs.uk/data-and-information/keeping-data-safe-and-benefitting-the-public)
or any other sensitive data in this PR (Pull Request) and the codebase
changes. We will remove any PR that do contain any sensitive
information. We really appreciate your cooperation in this matter.

- [x] I confirm that neither PII/PID nor sensitive data are included in
this PR and the codebase changes.

Author: stefaniuk

docs/user-guides/Run_Git_hooks_on_commit.md

@@ -17,7 +17,6 @@ The [pre-commit](https://pre-commit.com/) framework is a powerful tool for manag
   - [check-file-format.sh](../../scripts/githooks/check-file-format.sh)
   - [check-markdown-format.sh](../../scripts/githooks/check-markdown-format.sh)
   - [check-terraform-format.sh](../../scripts/githooks/check-terraform-format.sh)
-  - [scan-dependencies.sh](../../scripts/githooks/scan-dependencies.sh)
   - [scan-secrets.sh](../../scripts/githooks/scan-secrets.sh)
 - Configuration
   - [pre-commit.yaml](../../scripts/config/pre-commit.yaml)

docs/user-guides/Scan_dependencies.md

@@ -21,7 +21,6 @@ In modern software development, leveraging third-party dependencies is a common
 - [grype.yaml](../../scripts/config/grype.yaml): A configuration file for the CVE scanner
 - [scan-dependencies/action.yaml](../../.github/actions/scan-dependencies/action.yaml): GitHub action to run the scripts as part of the CI/CD pipeline
 - [.gitignore](../../.gitignore): Excludes the `*sbom*report.json` and `*vulnerabilities*report.json` report files created during the process
-- [scan-dependencies.sh](../../scripts/githooks/scan-dependencies.sh): a Git hook to scan dependencies upon each commit. For a more comprehensive information of how these Git hooks operate, please refer to the [Run Git hooks on commit](./Run_Git_hooks_on_commit.md) guide
 
 ## Configuration checklist
 

scripts/config/pre-commit.yaml

@@ -27,10 +27,3 @@ repos:
     entry: ./scripts/githooks/check-terraform-format.sh
     language: script
     pass_filenames: false
-- repo: local
-  hooks:
-  - id: scan-dependencies
-    name: Scan Dependencies
-    entry: ./scripts/githooks/scan-dependencies.sh
-    language: script
-    pass_filenames: false