build: Removing 'subst' feature that is defined in waf (waflib/TaskGen.py)

waf-tools/misc.py

@@ -101,46 +101,6 @@ def subst_func(tsk):
 
 	tsk.outputs[0].write(s % di)
 
-@feature('subst')
-@before_method('process_source')
-def apply_subst(self):
-	Utils.def_attrs(self, fun=subst_func)
-	lst = self.to_list(self.source)
-	self.meths.remove('process_source')
-
-	self.dict = getattr(self, 'dict', {})
-
-	for filename in lst:
-		node = self.path.find_resource(filename)
-		if not node: raise Errors.WafError('cannot find input file %s for processing' % filename)
-
-		if self.target:
-			newnode = self.path.find_or_declare(self.target)
-		else:
-			newnode = node.change_ext('')
-
-		try:
-			self.dict = self.dict.get_merged_dict()
-		except AttributeError:
-			pass
-
-		if self.dict and not self.env['DICT_HASH']:
-			self.env = self.env.derive()
-			keys = list(self.dict.keys())
-			keys.sort()
-			lst = [self.dict[x] for x in keys]
-			self.env['DICT_HASH'] = str(Utils.h_list(lst))
-
-		tsk = self.create_task('copy', node, newnode)
-		tsk.fun = self.fun
-		tsk.dict = self.dict
-		tsk.dep_vars = ['DICT_HASH']
-		tsk.chmod = getattr(self, 'chmod', Utils.O644)
-
-		if not tsk.env:
-			tsk.debug()
-			raise Errors.WafError('task without an environment')
-
 ####################
 ## command-output ####
 ####################