Removed unnecessary synchronization lock from serverSwitch constructor

Lock was useless here as it was set on an object instance attribute
while the object itself is not yet constructed and no other threads can
access it.

source/net/yacy/server/serverSwitch.java

@@ -113,7 +113,6 @@ public class serverSwitch {
 
 		// remove all values from config that do not appear in init
 		this.configRemoved = new ConcurrentHashMap<String, String>();
-		synchronized (this.configProps) {
 		Iterator<String> i = this.configProps.keySet().iterator();
 		String key;
 		while (i.hasNext()) {
@@ -132,7 +131,6 @@ public class serverSwitch {
 		// save result; this may initially create a config file after
 		// initialization
 		saveConfig();
-		}
 
 		// init thread control
 		this.workerThreads = new TreeMap<String, BusyThread>();