ci: Drop appveyor caches

git-svn-id: https://svn.apache.org/repos/asf/xerces/c/trunk@1840353 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/.appveyor.yml b/.appveyor.yml
index 551a453..01e8cdd 100644
--- a/.appveyor.yml
+++ b/.appveyor.yml
@@ -99,8 +99,8 @@
       mfc: OFF
 
 cache:
-  - 'c:\projects\download -> scripts/ci-appveyor-setup'
-  - 'c:\projects\icu -> scripts/ci-appveyor-setup'
+#  - 'c:\projects\download -> scripts/ci-appveyor-setup'
+#  - 'c:\projects\icu -> scripts/ci-appveyor-setup'
 
 # Operating system (build VM template)
 os: 'Visual Studio 2015'