[builtins] Remove UntypedParameter from TF_BUILTIN

The TF_BUILTIN version of UntypedParameter is not used anywhere. There's
still CodeAssembler::UntypedParameter which is still in use if a untyped
parameter is required.

Change-Id: I3580e73b781d750878d7bb1b38298d5b82d15f4c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2445876
Commit-Queue: Dan Elphick <delphick@chromium.org>
Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
Auto-Submit: Dan Elphick <delphick@chromium.org>
Reviewed-by: Santiago Aboy Solanes <solanes@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70289}

src/builtins/builtins-utils-gen.h

@@ -36,10 +36,6 @@ class CodeAssemblerState;
         : AssemblerBase(state) {}                                           \
     void Generate##Name##Impl();                                            \
                                                                             \
-    Node* UntypedParameter(Descriptor::ParameterIndices index) {            \
-      return CodeAssembler::UntypedParameter(static_cast<int>(index));      \
-    }                                                                       \
-                                                                            \
     template <class T>                                                      \
     TNode<T> Parameter(                                                     \
         Descriptor::ParameterIndices index,                                 \