Revert grains enviorn.

This has massively broken the develop branch. Reverting.

salt/grains/core.py

@@ -1158,15 +1158,6 @@ def path():
     return {'path': os.environ['PATH'].strip()}
 
 
-def environ():
-    '''
-    Returns the environment variables
-    '''
-    # Provides:
-    #   environ
-    return {'environ': os.environ}
-
-
 def pythonversion():
     '''
     Return the Python version