Fixed merge mistake in InternalSylvanDdManager.cpp

Former-commit-id: 5919f2402e

src/storage/dd/sylvan/InternalSylvanDdManager.cpp

@@ -128,9 +128,7 @@ namespace storm {
 
         std::pair<InternalBdd<DdType::Sylvan>, InternalBdd<DdType::Sylvan>> InternalDdManager<DdType::Sylvan>::createNewDdVariablePair(boost::optional<uint_fast64_t> const& position) {
             STORM_LOG_THROW(!position, storm::exceptions::NotSupportedException, "The manager does not support ordered insertion.");
-		}
 			
-        std::pair<InternalBdd<DdType::Sylvan>, InternalBdd<DdType::Sylvan>> InternalDdManager<DdType::Sylvan>::createNewDdVariablePair() {
             InternalBdd<DdType::Sylvan> first = InternalBdd<DdType::Sylvan>(this, sylvan::Bdd::bddVar(nextFreeVariableIndex));
             InternalBdd<DdType::Sylvan> second = InternalBdd<DdType::Sylvan>(this, sylvan::Bdd::bddVar(nextFreeVariableIndex + 1));
             nextFreeVariableIndex += 2;