chore: remove placeholder images and unnecessary comments from build and packaging documentation

Author: mstrhakr

docs/build-and-packaging.md

@@ -9,13 +9,6 @@ mermaid: true
 
 This guide covers advanced build and packaging practices for Unraid plugins, including CI/CD pipelines, versioning strategies, and distribution best practices. The concepts here are derived from how LimeTech and the community build professional-grade plugins.
 
-<img src="../assets/images/logos/GitHub%20Logos/GitHub_Copilot_Lockup_White.svg" alt="GitHub" height="32" style="margin-bottom: 1rem;">
-
-{: .placeholder-image }
-> 📷 **Screenshot needed:** *GitHub Actions workflow running*
->
-> ![GitHub Actions](../assets/images/screenshots/github-actions.png)
-
 ## Build Artifacts Overview
 
 A complete Unraid plugin distribution consists of two primary artifacts:
@@ -262,8 +255,6 @@ esac
 
 ## CI/CD Pipeline with GitHub Actions
 
-<img src="../assets/images/logos/GitHub%20Logos/GitHub_Invertocat_White.svg" alt="GitHub" height="40" align="right">
-
 {: .tip }
 > **Starting fresh?** The [Unraid Plugin Template](https://github.com/dkaser/unraid-plugin-template) includes a complete GitHub Actions workflow out of the box—just enable Actions and create a release.