fixup! remove unused error code

libsolidity/analysis/TypeChecker.cpp

@@ -1693,19 +1693,16 @@ bool TypeChecker::visit(TupleExpression const& _tuple)
 		{
 			if (!inlineArrayType)
 				m_errorReporter.fatalTypeError(6378_error, _tuple.location(), "Unable to deduce common type for array elements.");
-			else if (!inlineArrayType->nameable())
-				m_errorReporter.fatalTypeError(
-					9656_error,
-					_tuple.location(),
-					"Unable to deduce nameable type for array elements. Try adding explicit type conversion for the first element."
-				);
 			else if (inlineArrayType->containsNestedMapping())
+			{
+				// Types which are not nameable should not have mobileType and thus should have been detected before
+				solAssert(inlineArrayType->nameable());
 				m_errorReporter.fatalTypeError(
 					1545_error,
 					_tuple.location(),
 					"Type " + inlineArrayType->humanReadableName() + " is only valid in storage."
 				);
-
+			}
 			_tuple.annotation().type = TypeProvider::array(DataLocation::Memory, inlineArrayType, types.size());
 		}
 		else