Revert "Add example for upload field"
Revert "Add example for upload field"

This reverts commit b40eaae613e64dec34bb4a95299e01e932c83f61.

atk4/atk4-addons,xepan/atk4-addons,atk4/atk4-addons,xepan/atk4-addons,atk4/atk4-addons,xepan/atk4-addons