Drop clone folder

appveyor-test.yml

@@ -5,7 +5,6 @@ branches:
 build_cloud: libcc-20
 skip_branch_with_pr: true
 image: libcc-20-vs2017
-clone_folder: c:\build
 environment:
   DISABLE_CRASH_REPORTER_TESTS: true
   matrix:
@@ -75,4 +74,4 @@ deploy_script:
       }
     } else {
       Write-Output "Skipping upload distribution because build is not for release"
-    }
+    }