message: Don't add SSBO variable to interface if it's not used
diff: @@ -3499,7 +3499,7 @@ static void CreatePSInputFetcher(rdcarray<uint32_t> &fragspv, uint32_t &structSt
  editor.AddDecoration(rdcspv::OpDecorate(bufBase, rdcspv::Decoration::Block));
  }
  - if(editor.EntryPointAllGlobals())
  + if(editor.EntryPointAllGlobals() && ssboVar != rdcspv::Id())
  addedInputs.push_back(ssboVar);
  // add our inputs to the entry point's ID list. Since we're expanding the list we have to copy,
  