Remove AppVeyor integration

This addresses Dn-Programming-Core-Management#283.

AppVeyor is less convenient than Github Actions as it is much slower to
complete multiple builds.

This also has the added cost of needing to maintain two separate build
script formats rather than a single one.

README.md

@@ -18,19 +18,15 @@ Dn-Famitracker is a fork of 0CC-FamiTracker that incorporates numerous fixes and
 
 ## Downloads
 
-Download releases: [![GitHub all releases](https://img.shields.io/github/downloads/Dn-Programming-Core-Management/Dn-FamiTracker/total?logo=github&style=flat-square)](https://github.com/Dn-Programming-Core-Management/Dn-FamiTracker/releases)
-
-Development builds: [![AppVeyor](https://img.shields.io/appveyor/build/Gumball2415/dn-famitracker?logo=appveyor&style=flat-square)](https://ci.appveyor.com/project/Gumball2415/dn-famitracker/history)
-
-Github Actions automated builds: [![GitHub Actions](https://img.shields.io/github/actions/workflow/status/Dn-Programming-Core-Management/Dn-FamiTracker/build-artifact.yml?style=flat-square)](https://github.com/Dn-Programming-Core-Management/Dn-FamiTracker/actions/workflows/build-artifact.yml)
-
-Github Actions automated release builds: [![GitHub](https://img.shields.io/github/actions/workflow/status/Dn-Programming-Core-Management/Dn-FamiTracker/build-release-artifact.yml?style=flat-square)](https://github.com/Dn-Programming-Core-Management/Dn-FamiTracker/actions/workflows/build-release-artifact.yml)
-
-Legacy Dev Builds: [![AppVeyor](https://img.shields.io/appveyor/build/Gumball2415/dn-famitracker-legacy?logo=appveyor&style=flat-square)](https://ci.appveyor.com/project/Gumball2415/dn-famitracker-legacy/history)
-
-Notice: Due to delayed Appveyor reintegration, builds for commits `dc4c9e8` to `2141360` are not available.
-
-Notice: Due to delayed branch renaming, builds for commits `bc46c86` to `a591d15` are not available.
+- Download releases: [![GitHub all releases](https://img.shields.io/github/downloads/Dn-Programming-Core-Management/Dn-FamiTracker/total?logo=github&style=flat-square)](https://github.com/Dn-Programming-Core-Management/Dn-FamiTracker/releases)
+- GitHub Actions automated builds: [![GitHub Actions](https://img.shields.io/github/actions/workflow/status/Dn-Programming-Core-Management/Dn-FamiTracker/build-artifact.yml?style=flat-square)](https://github.com/Dn-Programming-Core-Management/Dn-FamiTracker/actions/workflows/build-artifact.yml)
+- Github Actions automated release builds: [![GitHub](https://img.shields.io/github/actions/workflow/status/Dn-Programming-Core-Management/Dn-FamiTracker/build-release-artifact.yml?style=flat-square)](https://github.com/Dn-Programming-Core-Management/Dn-FamiTracker/actions/workflows/build-release-artifact.yml)
+- Legacy AppVeyor Gumball2415 builds: [![AppVeyor](https://img.shields.io/appveyor/build/Gumball2415/dn-famitracker-legacy?logo=appveyor&style=flat-square)](https://ci.appveyor.com/project/Gumball2415/dn-famitracker-legacy/history)
+- Legacy AppVeyor automated D.P.C.M. builds: [![AppVeyor](https://img.shields.io/appveyor/build/Gumball2415/dn-famitracker?logo=appveyor&style=flat-square)](https://ci.appveyor.com/project/Gumball2415/dn-famitracker/history)
+- AppVeyor notice:
+	- Due to delayed AppVeyor reintegration, builds for commits `dc4c9e86` to 21413603` are not available.
+	- Due to delayed AppVeyor branch reconfiguration, builds for commits bc46c86c` to a591d154` are not available.
+	- Due to less reliability, AppVeyor builds beyond `2c997736` are not available.
 
 ## Licenses