Merge pull request #155 from pre-commit/asottile-patch-1

Also remove git variables from appveyor

appveyor.yml

diff --git a/appveyor.yml b/appveyor.yml
index 30eab46..4bde8cc 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -10,10 +10,6 @@
 # Not a C# project
 build: false
 
-before_test:
-  - git config --global user.name "AppVeyor CI"
-  - git config --global user.email "user@example.com"
-
 test_script: tox
 
 cache: