Base: Remove weird error parameter from encode

src/Base/Interpreter.cpp

@@ -304,7 +304,7 @@ std::string InterpreterSingleton::runStringWithKey(const char* psCmd,
         key_return_value = key_return_value.str();  // NOLINT
     }
 
-    Py::Bytes str = Py::String(key_return_value).encode("utf-8", "~E~");
+    Py::Bytes str = Py::String(key_return_value).encode("utf-8");
     std::string result = static_cast<std::string>(str);
     return result;
 }