Delete unused code.

Cython/Compiler/ParseTreeTransforms.pxd

@@ -7,9 +7,6 @@ from .Visitor cimport (
     CythonTransform, VisitorTransform, TreeVisitor,
     ScopeTrackingTransform, EnvTransform)
 
-cdef class NameNodeCollector(TreeVisitor):
-    cdef list name_nodes
-
 cdef class SkipDeclarations: # (object):
     pass
 

Cython/Compiler/ParseTreeTransforms.py

@@ -25,20 +25,6 @@ from .StringEncoding import EncodedString, _unicode
 from .Errors import error, warning, CompileError, InternalError
 from .Code import UtilityCode
 
-class NameNodeCollector(TreeVisitor):
-    """Collect all NameNodes of a (sub-)tree in the ``name_nodes``
-    attribute.
-    """
-    def __init__(self):
-        super(NameNodeCollector, self).__init__()
-        self.name_nodes = []
-
-    def visit_NameNode(self, node):
-        self.name_nodes.append(node)
-
-    def visit_Node(self, node):
-        self._visitchildren(node, None)
-
 
 class SkipDeclarations(object):
     """
@@ -66,6 +52,7 @@ class SkipDeclarations(object):
     def visit_CStructOrUnionDefNode(self, node):
         return node
 
+
 class NormalizeTree(CythonTransform):
     """
     This transform fixes up a few things after parsing