TST: Drop run_with_env.cmd

Author: Kojoley

appveyor.yml

@@ -2,12 +2,6 @@
 # Windows
 
 environment:
-  global:
-    # SDK v7.0 MSVC Express 2008's SetEnv.cmd script will fail if the
-    # /E:ON and /V:ON options are not enabled in the batch script intepreter
-    # See: https://stackoverflow.com/a/13751649/163740
-    CMD_IN_ENV: "cmd /E:ON /V:ON /C .\\ci\\appveyor\\run_with_env.cmd"
-
   matrix:
      - PYTHON: "C:\\Python27"
      - PYTHON: "C:\\Python27-x64"
@@ -26,7 +20,7 @@ install:
   - "python -c \"import struct; print(struct.calcsize('P') * 8)\""
 
   # Install the build and runtime dependencies of the project.
-  - "%CMD_IN_ENV% pip install -v six nose pytest pytest-cov coverage"
+  - "pip install -v six nose pytest pytest-cov coverage"
 
   # Install the generated wheel package to test it
   - "python setup.py install"