Move the initialization of the platform specific ssl server certificate
initialization to svn_auth_get_platform_specific_client_providers().

* subversion/libsvn_subr/auth.c
  (svn_auth_get_platform_specific_client_providers): Move ssl server provider
    setup here..

* subversion/libsvn_subr/cmdline.c
  (svn_cmdline_create_auth_baton): ... that somehow stayed here when we moved
    the other providers some time ago.


git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1534153 13f79535-47bb-0310-9956-ffa450edef68