Remove unnecessary code

Author: MarcMil

soot-infoflow-android/src/soot/jimple/infoflow/android/source/parsers/xml/AbstractXMLSourceSinkParser.java

@@ -192,8 +192,6 @@ protected void handleStarttagCategory(Attributes attributes) {
 
 			String strDescription = attributes.getValue(XMLConstants.DESCRIPTION_ATTRIBUTE);
 
-			if (strDescription != null)
-				strDescription = strDescription.trim();
 			if (strDescription != null && !strDescription.isEmpty())
 				strDescription = strDescription.trim();