Remove a useless assignment

src/eu/telecom_bretagne/praxis/common/StreamGobbler.java

@@ -121,7 +121,7 @@ public class StreamGobbler extends Thread {
 				idx++;
 				synchronized(sw) { sw.write(c); }
 			}
-			while ( (c = stream.read()) != -1) {/* limit exceeded: do nothing */}
+			while ( stream.read() != -1) {/* limit exceeded: do nothing */}
 		}
 		catch (IOException ioe)
 		{ // explicitly ignore the error, simply log it