build: Remove support for a system libsmbclient

With the new --private-libraries option, there is no longer the need
to have this support, which was aimed at avoiding the duplication
between two different libsmbclient binaries in a packaged
distribution.  By using --private-libraries instead, we do not
introduce a dependency between Samba 4.0 packages and whatever other
packages are on the system.

This effectivly reverts part of
e3ffb31554 while kpeeing the improved
SAMBA_LIBRARY declaration.

Andrew Bartlett

source3/libsmb/wscript

@@ -2,16 +2,7 @@
 
 import Options, Logs
 
-def configure(conf):
-    if conf.CHECK_BUNDLED_SYSTEM_PKG('smbclient', minversion='0'):
-        conf.define('USING_SYSTEM_LIBSMBCLIENT', 1)
-
 def build(bld):
-    if bld.CONFIG_SET('USING_SYSTEM_LIBSMBCLIENT'):
-        Logs.info("\tSelected system libsmbclient build")
-        return
-
-    Logs.info("\tSelected embedded libsmbclient build")
     bld.SAMBA3_LIBRARY('smbclient',
                        source='''
                               libsmb_cache.c

wscript

@@ -105,7 +105,6 @@ def configure(conf):
     conf.RECURSE('selftest')
     conf.RECURSE('source3')
     conf.RECURSE('lib/addns')
-    conf.RECURSE('source3/libsmb')
 
     conf.SAMBA_CHECK_UNDEFINED_SYMBOL_FLAGS()