is this necessary during pseudoinstruction expansion?

[jiaweizhang]

if (pseudoInstructionGrammar.regex.length() == 0) {
                // if empty regex match, simply add new instructions
                for (String newInstruction : pseudoInstructionGrammar.results) {
                    Line newLine = new Line();
                    newLine.line = l.line;
                    newLine.text = newInstruction;
                    expandedPseudoInstructions.add(newLine);
                }
                continue;
            }

[jiaweizhang]

removed