Fixing an issue where optional parameters were having their types dropped.

sdk/lib/html/scripts/generator.py

Index: sdk/lib/html/scripts/generator.py
diff --git a/sdk/lib/html/scripts/generator.py b/sdk/lib/html/scripts/generator.py
index 1a38f4f3460dd77c07020fad2185002a87205c10..6c68942b7c90040d5fa3d5187dd971f2cc9b2f6e 100644
--- a/sdk/lib/html/scripts/generator.py
+++ b/sdk/lib/html/scripts/generator.py
@@ -401,17 +401,6 @@ class OperationInfo(object):
       if param_info.is_optional:
         EmitOptionalParameterInvocation(index)
 
-
-  def CopyAndWidenDefaultParameters(self):
-    """Returns equivalent OperationInfo, but default parameters are dynamic."""
-    info = copy.copy(self)
-    info.param_infos = [param.Copy() for param in self.param_infos]
-    for param in info.param_infos:
-      if param.is_optional:
-        param.type_id = None
-    return info
-
-
 def ConstantOutputOrder(a, b):
   """Canonical output ordering for constants."""
   if a.id < b.id: return -1