update ci yml

appveyor.yml

@@ -3,14 +3,9 @@ os: Visual Studio 2019
 environment:
   BUILDING_ON_PLATFORM: win
   BuildEnvironment: appveyor
-  Cap_SqlServer_ConnectionStringTemplate: Server=(local)\SQL2014;Database={0};User ID=sa;Password=Password12!
   Cap_MySql_ConnectionStringTemplate: Server=localhost;Database={0};Uid=root;Pwd=Password12!;Allow User Variables=True;SslMode=none
-  Cap_PostgreSql_ConnectionStringTemplate: Server=localhost;Database={0};UserId=postgres;Password=Password12!
 services:
-  - mssql2014
   - mysql
-  - postgresql
-  - mongodb
 build_script:
 - ps: ./build.ps1
 test: off