Remove AppVeyor CI in favor of GitHub.

.appveyor/install.bat

@@ -1,86 +0,0 @@
-@echo off
-
-IF "%BUILD_DIR%"=="" SET BUILD_DIR=C:\TBuild
-SET LIB_DIR=%BUILD_DIR%\Libraries
-SET SRC_DIR=%BUILD_DIR%\tdesktop
-SET QT_VERSION=5_6_2
-
-call:configureBuild
-call:getDependencies
-call:setupGYP
-cd %SRC_DIR%
-
-echo Finished!
-
-GOTO:EOF
-
-:: FUNCTIONS
-:logInfo
-    echo [INFO] %~1
-GOTO:EOF
-
-:logError
-    echo [ERROR] %~1
-GOTO:EOF
-
-:getDependencies
-    call:logInfo "Clone dependencies repository"
-    git clone -q --depth 1 --branch master https://github.com/telegramdesktop/dependencies_windows.git %LIB_DIR%
-    cd %LIB_DIR%
-
-    git clone --depth 1 --branch 0.10.0 https://github.com/ericniebler/range-v3
-
-    if exist prepare.bat (
-        call prepare.bat
-    ) else (
-        call:logError "Error cloning dependencies, trying again"
-        rmdir %LIB_DIR% /S /Q
-        call:getDependencies
-    )
-GOTO:EOF
-
-:setupGYP
-    call:logInfo "Setup GYP/Ninja and generate VS solution"
-    cd %LIB_DIR%
-    git clone https://github.com/telegramdesktop/gyp.git
-    cd gyp
-    git checkout tdesktop
-    SET PATH=%PATH%;%BUILD_DIR%\Libraries\gyp;%BUILD_DIR%\Libraries\ninja;
-    cd %SRC_DIR%
-    git submodule init
-    git submodule update
-    cd %SRC_DIR%\Telegram
-    call gyp\refresh.bat --api-id 17349 --api-hash 344583e45741c457fe1862106095a5eb --ci-build
- GOTO:EOF
-
-:configureBuild
-    call:logInfo "Configuring build"
-    call:logInfo "Build version: %BUILD_VERSION%"
-    set TDESKTOP_BUILD_DEFINES=
-
-    echo %BUILD_VERSION% | findstr /C:"disable_register_custom_scheme">nul && (
-        set TDESKTOP_BUILD_DEFINES=%TDESKTOP_BUILD_DEFINES%,TDESKTOP_DISABLE_REGISTER_CUSTOM_SCHEME
-    )
-
-    echo %BUILD_VERSION% | findstr /C:"disable_crash_reports">nul && (
-        set TDESKTOP_BUILD_DEFINES=%TDESKTOP_BUILD_DEFINES%,DESKTOP_APP_DISABLE_CRASH_REPORTS
-    )
-
-    echo %BUILD_VERSION% | findstr /C:"disable_network_proxy">nul && (
-        set TDESKTOP_BUILD_DEFINES=%TDESKTOP_BUILD_DEFINES%,TDESKTOP_DISABLE_NETWORK_PROXY
-    )
-
-    echo %BUILD_VERSION% | findstr /C:"disable_desktop_file_generation">nul && (
-        set TDESKTOP_BUILD_DEFINES=%TDESKTOP_BUILD_DEFINES%,TDESKTOP_DISABLE_DESKTOP_FILE_GENERATION
-    )
-
-    echo %BUILD_VERSION% | findstr /C:"disable_gtk_integration">nul && (
-        set TDESKTOP_BUILD_DEFINES=%TDESKTOP_BUILD_DEFINES%,TDESKTOP_DISABLE_GTK_INTEGRATION
-    )
-
-    if not "%TDESKTOP_BUILD_DEFINES%" == "" (
-        set "TDESKTOP_BUILD_DEFINES=%TDESKTOP_BUILD_DEFINES:~1%"
-    )
-
-    call:logInfo "Build Defines: %TDESKTOP_BUILD_DEFINES%"
-GOTO:EOF

README.md

@@ -6,7 +6,6 @@ This is the complete source code and the build instructions for the alpha versio
 [![Build Status](https://github.com/telegramdesktop/tdesktop/workflows/Windows./badge.svg)](https://github.com/telegramdesktop/tdesktop/actions)
 [![Build Status](https://github.com/telegramdesktop/tdesktop/workflows/MacOS./badge.svg)](https://github.com/telegramdesktop/tdesktop/actions)
 [![Build Status](https://travis-ci.org/telegramdesktop/tdesktop.svg?branch=dev)](https://travis-ci.org/telegramdesktop/tdesktop)
-[![Build status](https://ci.appveyor.com/api/projects/status/uiw2y768iy4i5bu8/branch/dev?svg=true)](https://ci.appveyor.com/project/telegramdesktop/tdesktop)
 
 [![Preview of Telegram Desktop][preview_image]][preview_image_url]
 

appveyor.yml

@@ -1,28 +0,0 @@
-image: Visual Studio 2019
-clone_folder: C:\TBuild\tdesktop
-test: off
-deploy: off
-
-environment:
-  GYP_MSVS_OVERRIDE_PATH: 'C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\'
-  GYP_MSVS_VERSION: 2019
-  matrix:
-   - BUILD_VERSION:
-   - BUILD_VERSION: disable_register_custom_scheme
-   - BUILD_VERSION: disable_crash_reports
-   - BUILD_VERSION: disable_network_proxy
-
-matrix:
-  fast_finish: true
-
-before_build:
-  - .\.appveyor\install.bat
-
-build:
-  project: Telegram\Telegram.sln
-
-artifacts:
-  - path: out\Debug\Telegram.exe
-    name: Telegram_debug.exe
-  - path: out\Debug\Telegram.exe.pdb
-    name: Telegram_debug.exe.pdb