diff --git a/bin/generate-exports.py b/bin/generate-exports.py
index 562f99aa92..6d7d861eed 100755
--- a/bin/generate-exports.py
+++ b/bin/generate-exports.py
@@ -22,66 +22,6 @@ class Exportable(object):
     def export(self):
         return ''
 
-    def extern(self):
-        return ''
-
-    def typedef(self):
-        return ''
-
-
-class ObjectLiteral(Exportable):
-
-    def __init__(self, name, objects):
-        Exportable.__init__(self, name)
-        self.prop_types = {}
-        self.objects = objects
-
-    __repr__ = simplerepr
-
-    def extern(self):
-        lines = []
-        lines.append('\n\n\n')
-        lines.append('/**\n')
-        lines.append(' * @interface\n')
-        lines.append(' */\n')
-        lines.append('%s = function() {};\n' % (self.extern_name(),))
-        for prop in sorted(self.prop_types.keys()):
-            lines.append('\n\n')
-            lines.append('/**\n')
-            prop_types = self.prop_types[prop].split('|')
-            for i, t in enumerate(prop_types):
-                if t in self.objects and isinstance(self.objects[t], ObjectLiteral):
-                    prop_types[i] = self.objects[t].extern_name()
-            prop_types = '|'.join(prop_types)
-            lines.append(' * @type {%s}\n' % (prop_types,))
-            lines.append(' */\n')
-            lines.append('%s.prototype.%s;\n' % (self.extern_name(), prop))
-        return ''.join(lines)
-
-    def extern_name(self):
-        return re.sub(r'(olx\.\S+)', r'\1Extern', self.name)
-
-    def extern_namespace(self):
-        return '.'.join(self.extern_name().split('.')[:-1]) or None
-
-    def provide(self):
-        return 'goog.provide(\'%s\');\n' % (self.name,)
-
-    def typedef(self):
-        lines = []
-        lines.append('\n\n')
-        lines.append('/**\n')
-        for i, prop in enumerate(sorted(self.prop_types.keys())):
-            prefix =  ' * @typedef {{' if i == 0 else ' *            '
-            suffix = '}}' if i == len(self.prop_types) - 1 else ','
-            type = self.prop_types[prop]
-            if '|' in type:
-                type = '(%s)' % (type,)
-            lines.append('%s%s: %s%s\n' % (prefix, prop, type, suffix))
-        lines.append(' */\n')
-        lines.append('%s;\n' % (self.name,))
-        return ''.join(lines)
-
 
 class Symbol(Exportable):
 
@@ -104,50 +44,15 @@ def main(argv):
 
     option_parser = OptionParser()
     option_parser.add_option('--exports', action='store_true')
-    option_parser.add_option('--externs', action='store_true')
-    option_parser.add_option('--typedef', action='store_true')
     options, args = option_parser.parse_args(argv[1:])
 
     objects = {}
     requires = set()
     for arg in args:
-        in_comment = False
-        object_literal = None
         for line in open(arg, 'rU'):
             line = line.strip()
             if not line:
                 continue
-            if line == '/**':
-                assert not in_comment
-                in_comment = True
-                continue
-            if line == '*/':
-                assert in_comment
-                in_comment = False
-                object_literal = None
-                continue
-            if in_comment:
-                if not line.startswith('*'):
-                    raise RuntimeError(line)  # malformed comment
-                m = re.match(r'\*\s*@typedef\s*\{Object\}\s*(?P<name>\S+)', line)
-                if m:
-                    assert object_literal is None
-                    name = m.group('name')
-                    if name in objects:
-                        raise RuntimeError(line)  # Name already defined
-                    object_literal = ObjectLiteral(name, objects)
-                    objects[name] = object_literal
-                    continue
-                m = re.match(r'\*\s*@property\s*{(?P<type>.*?)}\s*(?P<prop>\S+)', line)
-                if m:
-                    assert object_literal is not None
-                    prop = m.group('prop')
-                    if prop in object_literal.prop_types:
-                        raise RuntimeError(line)  # Duplicate property
-                    type = m.group('type')
-                    object_literal.prop_types[prop] = type
-                    continue
-                continue
             m = re.match(r'@exportProperty\s+(?P<prop>\S+)\Z', line)
             if m:
                 components = m.group('prop').split('.')
@@ -188,32 +93,5 @@ def main(argv):
         for obj in objects:
             sys.stdout.write(obj.export())
 
-    if options.externs:
-        object_literals = [obj for obj in objects if isinstance(obj, ObjectLiteral)]
-        sys.stdout.write('/**\n')
-        sys.stdout.write(' * @externs\n')
-        sys.stdout.write(' */\n')
-        namespaces = sorted(set(filter(None, (object_literal.extern_namespace() for object_literal in object_literals))))
-        for namespace in namespaces:
-            sys.stdout.write('\n\n')
-            sys.stdout.write('/**\n')
-            sys.stdout.write(' * @type {Object}\n')
-            sys.stdout.write(' */\n')
-            if '.' in namespace:
-                sys.stdout.write('%s = {};\n' % (namespace,))
-            else:
-                sys.stdout.write('var %s;\n' % (namespace,))
-        for object_literal in object_literals:
-            sys.stdout.write(object_literal.typedef())
-            sys.stdout.write(object_literal.extern())
-
-    if options.typedef:
-        object_literals = [obj for obj in objects if isinstance(obj, ObjectLiteral)]
-        for object_literal in object_literals:
-            sys.stdout.write(object_literal.provide())
-        for object_literal in object_literals:
-            sys.stdout.write(object_literal.typedef())
-
-
 if __name__ == '__main__':
     sys.exit(main(sys.argv))