remove the old api functions

doc/NERD_tree.txt

@@ -949,41 +949,7 @@ This option is used to change the size of the NERD tree when it is loaded.
 ==============================================================================
 4. Hacking the NERD tree                                     *NERDTreeHacking*
 
-Public functions ~
+TODO: fill in when new api is complete
-
-The script provides 2 public functions for your hacking pleasure. Their
-signatures are: >
-    function! NERDTreeGetCurrentNode()
-    function! NERDTreeGetCurrentPath()
-<
-The first returns the node object that the cursor is currently on, while the
-second returns the corresponding path object.
-
-This is probably a good time to mention that the script implements prototype
-style OO. To see the functions that each class provides you can read look at
-the code.
-
-Use the node objects to manipulate the structure of the tree. Use the path
-objects to access the files/directories the tree nodes represent.
-
-The NERD tree filetype ~
-
-NERD tree buffers have a filetype of "nerdtree". You can use this to hack the
-NERD tree via autocommands (on |FileType|) or via an ftplugin.
-
-For example, putting this code in ~/.vim/ftplugin/nerdtree.vim would override
-the o mapping, making it open the selected node in a new gvim instance. >
-
-    nnoremap <silent> <buffer> o :call <sid>openInNewVimInstance()<cr>
-    function! s:openInNewVimInstance()
-        let p = NERDTreeGetCurrentPath()
-        if p != {}
-            silent exec "!gvim " . p.strForOS(1) . "&"
-        endif
-    endfunction
-<
-This way you can add new mappings or :commands or override any existing
-mapping.
 
 ==============================================================================
 5. About                                                       *NERDTreeAbout*

plugin/NERD_tree.vim

@@ -2421,46 +2421,6 @@ let g:NERDTreeDirNode = s:TreeDirNode
 let g:NERDTreeFileNode = s:TreeFileNode
 let g:NERDTreeBookmark = s:Bookmark
 
-
-"Returns the node that the cursor is currently on.
-"
-"If the cursor is not in the NERDTree window, it is temporarily put there.
-"
-"If no NERD tree window exists for the current tab, a NERDTree.NoTreeForTab
-"exception is thrown.
-"
-"If the cursor is not on a node then an empty dictionary {} is returned.
-function! NERDTreeGetCurrentNode()
-    if !s:treeExistsForTab() || !s:isTreeOpen()
-        throw "NERDTree.NoTreeForTabError: there is no NERD tree open for the current tab"
-    endif
-
-    let winnr = winnr()
-    if winnr != s:getTreeWinNum()
-        call s:putCursorInTreeWin()
-    endif
-
-    let treenode = s:TreeFileNode.GetSelected()
-
-    if winnr != winnr()
-        call s:exec('wincmd w')
-    endif
-
-    return treenode
-endfunction
-
-"Returns the path object for the current node.
-"
-"Subject to the same conditions as NERDTreeGetCurrentNode
-function! NERDTreeGetCurrentPath()
-    let node = NERDTreeGetCurrentNode()
-    if node != {}
-        return node.path
-    else
-        return {}
-    endif
-endfunction
-
 function! NERDTreeAddMenuItem(options)
     call s:MenuItem.Create(a:options)
 endfunction