appveyor.yml in textbringer-0.2.7 vs appveyor.yml in textbringer-0.2.8

@@ -1,9 +1,8 @@
 ---
 clone_depth: 10
 install:
   - SET PATH=C:\Ruby%ruby_version%\bin;%PATH%
-  - gem install bundler --no-document
   - bundle install
   - ps: '[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12'
   - ps: Invoke-WebRequest -Uri https://curl.haxx.se/ca/cacert.pem -OutFile C:\projects\textbringer\cacert.pem
 build: off
 test_script: