diff --git a/src/ExternalFunctionsTable.hh b/src/ExternalFunctionsTable.hh
index 5919833f03e183d5f4fa9ca2d2a9992410035106..997f8db2c109e1e80605dae90b966905e2a55b52 100644
--- a/src/ExternalFunctionsTable.hh
+++ b/src/ExternalFunctionsTable.hh
@@ -73,8 +73,6 @@ public:
   inline int getFirstDerivSymbID(int symb_id) const noexcept(false);
   //! Get the symbol_id of the second derivative function
   inline int getSecondDerivSymbID(int symb_id) const noexcept(false);
-  //! Returns the total number of unique external functions declared or used in the .mod file
-  inline int get_total_number_of_unique_model_block_external_functions() const;
 };
 
 inline bool
@@ -110,11 +108,4 @@ ExternalFunctionsTable::getSecondDerivSymbID(int symb_id) const noexcept(false)
     throw UnknownExternalFunctionSymbolIDException(symb_id);
 }
 
-inline int
-ExternalFunctionsTable::get_total_number_of_unique_model_block_external_functions() const
-{
-  return count_if(externalFunctionTable.begin(), externalFunctionTable.end(),
-                  [](const auto &kv) { return kv.second.nargs > 0; });
-}
-
 #endif