more misc. findbugs

core/java/src/gnu/crypto/prng/AsyncFortunaStandalone.java

@@ -156,7 +156,7 @@ public class AsyncFortunaStandalone extends FortunaStandalone implements Runnabl
     }
     
     private void doFill(byte buf[]) {
-        long start = System.currentTimeMillis();
+        //long start = System.currentTimeMillis();
         if (pool0Count >= MIN_POOL_SIZE
             && System.currentTimeMillis() - lastReseed > 100)
           {

core/java/src/net/i2p/time/Timestamper.java

@@ -316,7 +316,6 @@ public class Timestamper implements Runnable {
         System.setProperty(PROP_DISABLED, "false");
         System.setProperty(PROP_QUERY_FREQUENCY, "30000");
         I2PAppContext ctx = I2PAppContext.getGlobalContext();
-        long now = ctx.clock().now();
         for (int i = 0; i < 5*60*1000; i += 61*1000) {
             try { Thread.sleep(61*1000); } catch (InterruptedException ie) {}
         }