[Appveyor] Remove no-longer needed file

appveyor.yml

@@ -1,49 +0,0 @@
-version: 0.21.{build}
-
-# Branches to build
-branches:
-  only:
-  - master
-
-# Specify platform for MySQL check
-platform:
-  - Win32
-  
-# By default, AppVeyor only comes with 64bit MySQL, but 32 bit compiler.
-# Download standalone MySQL libraries for compilation.
-# Probably not the best solution, but it works for now.
-install:
-  - ps: |
-        if ($env:platform -eq "Win32")
-        {
-            Invoke-WebRequest "http://dev.mysql.com/get/Downloads/MySQL-5.6/mysql-5.6.28-win32.zip" -OutFile mysql-5.6.28-win32.zip
-            7z e -y mysql-5.6.28-win32.zip mysql-5.6.28-win32/lib -o"C:\Program Files (x86)\MySql\MySQL Server 5.6\lib"
-            7z e -y mysql-5.6.28-win32.zip mysql-5.6.28-win32/include -o"C:\Program Files (x86)\MySql\MySQL Server 5.6\include"
-
-            Write-Host "Installing OpenSSL v1.0 32-bit ..." -ForegroundColor Cyan
-            Write-Host "Downloading..."
-            $exePath = "$($env:USERPROFILE)\Win32OpenSSL-1_0_2L.exe"
-            (New-Object Net.WebClient).DownloadFile('https://slproweb.com/download/Win32OpenSSL-1_0_2L.exe', $exePath)
-            Write-Host "Installing..."
-            cmd /c start /wait $exePath /silent /verysilent /sp- /suppressmsgboxes /DIR=C:\OpenSSL-Win32-v10
-            Write-Host "Installed" -ForegroundColor Green
-        }
-
-# Clone to the specified folder below, and only clone the latest commit without history.
-clone_folder: c:\mzero\server
-
-clone_depth: 1
-
-# Enable parallel builds to speed up the compilation process.
-build:
-  parallel: true
-
-# Initialize submodules.
-before_build:
-  - git submodule update --init --recursive
- 
-# Build core.
-build_script:
-  - cd c:\mzero\server
-  - cmake -DCMAKE_INSTALL_PREFIX="c:\mzero\build\bin" -DCMAKE_SIZEOF_VOID_P=8 -DSOAP:BOOL=1 -DPLAYERBOTS:BOOL=1
-  - msbuild /m MaNGOS.sln