Remove MSVC 2013 jobs from appveyor CI
os: Visual Studio 2015
-# Test with the latest two releases of MSVC
+# MSVC versions
configuration:
- 2015
- - 2013
-# Test with the latest Lua and LuaJIT versions
+# Lua, LuaJIT, Luarocks versions
environment:
matrix:
# LuaRocks 3.1.3
