fix: update export props #87

Author: tangjinzhou

components/dropdown/index.js

@@ -1,7 +1,7 @@
 import Dropdown from './dropdown'
 import DropdownButton from './dropdown-button'
 
-export { DropDownProps } from './dropdown'
+export { DropdownProps } from './dropdown'
 export { DropdownButtonProps } from './dropdown-button'
 
 Dropdown.Button = DropdownButton

components/upload/index.jsx

@@ -2,7 +2,6 @@ import Upload from './Upload'
 import Dragger from './Dragger'
 
 export { UploadProps, UploadListProps, UploadChangeParam } from './interface'
-export { DraggerProps } from './Dragger'
 
 Upload.Dragger = Dragger
 export default Upload