remove all remains of old sgmlformat SConstruct code

SConstruct

@@ -10,7 +10,6 @@ PREFIX='/usr/local'
 VERSION='2.8.1b26'
 EFENCE=False
 CLIENTS=True
-SGML=False
 
 env = Environment(CPPPATH='#/include', LIBPATH=['/usr/lib','/usr/local/lib'])
 
@@ -60,7 +59,6 @@ from docdir import checkForUserDocdir
 from mandir import autodetectMandir
 from clients import checkForBuildingClients
 from sysconfdir import checkForUserSysconfdir
-from sgmlformat import checkForSGMLFMT
 from largefiles import enableLargeFiles
 from jade import checkDSSSLProcessor
 from dsssl import findDocbookStylesheets
@@ -79,7 +77,6 @@ conf = Configure(env,{'checkForCCOption':checkForCCOption,
 		      'autodetectMandir':autodetectMandir,
 		      'checkForUserSysconfdir':checkForUserSysconfdir,
 		      'checkForBuildingClients':checkForBuildingClients,
-		      'checkForSGMLFMT':checkForSGMLFMT,
 		      'checkDSSSLProcessor':checkDSSSLProcessor,
 		      'findDocbookStylesheets':findDocbookStylesheets
 	 	      })

site_scons/sgmlformat.py

@@ -1,32 +0,0 @@
-#
-# SCons SGML Doc building check
-#
-# Version 1.0
-# 10-Sep-2009
-#
-
-from SCons.Script import ARGUMENTS,Touch,Delete,Command
-import os
-import SCons.Action
-import SCons.SConf
-
-def checkForSGMLFMT(check):
-    """Returns True if we have working sgmlfmt executable for building documentation."""
-    check.Message("Checking for working sgmlfmt... ")
-    oldp=SCons.Action.print_actions
-    SCons.Action.print_actions = 0
-    check.env.Execute(Touch('empty'))
-    check.env.Execute(Delete('empty.html'))
-    check.env.Execute(SCons.Action.CommandAction("sgmlfmt -d docbook -f html empty"))
-    if os.path.isfile('empty.html'):
-        rc = 0
-    else:
-        rc = 127
-    check.env.Execute(Delete(['empty','empty.html']))
-    SCons.Action.print_actions = oldp
-    if rc == 0:
-        check.Result(True)
-        return True
-    else:
-        check.Result(False)
-        return False