Following up on r1449482, revert the introduction of svn_kind_t in
libsvn_client via svn_read_kind2. We still use svn_node_kind_t for ra
and local disk and this close to releasing 1.8 this requires to much changes.
(Going through the deprecated cases, more and more places had to convert
 between types)

We will probably have to rev this function again when really reporting
symlinks as proper symlinks anyway, to fix all usages.

* subversion/include/svn_wc.h
  (svn_wc_read_kind2): Update argument and documentation. Remove invalid
    section on kind unknown as we never passed that on via this function.

* subversion/libsvn_client/util.c
  (fetch_kind_func): Update caller.

* subversion/libsvn_wc/deprecated.c
  (svn_wc_read_kind): Update caller.

* subversion/libsvn_wc/node.c
  (svn_wc_read_kind2): Update output argument type.


git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1449499 13f79535-47bb-0310-9956-ffa450edef68