Fix #79 by removing confusing comment(s)

Author: cowtowncoder

src/main/java/com/fasterxml/uuid/NoArgGenerator.java

@@ -10,5 +10,10 @@
  */
 public abstract class NoArgGenerator extends UUIDGenerator
 {
+    /**
+     * Method for generating a {@link UUID}.
+     *
+     * @return Newly generated {@link UUID}
+     */
     public abstract UUID generate();
 }

src/main/java/com/fasterxml/uuid/UUIDTimer.java

@@ -233,7 +233,9 @@ public int getClockSequence() {
     /**
      * Method that constructs unique timestamp suitable for use for
      * constructing UUIDs. Default implementation is fully synchronized;
-     * sub-classes may choose to implemented alternate strategies
+     * sub-classes may choose to implement alternate strategies but
+     * due to existing usage and expectations should also be synchronized
+     * unless usage is specifically known not to require it.
      *
      * @return 64-bit timestamp to use for constructing UUID
      */

src/main/java/com/fasterxml/uuid/impl/TimeBasedGenerator.java

@@ -85,11 +85,7 @@ public TimeBasedGenerator(EthernetAddress ethAddr, UUIDTimer timer)
     /* UUID generation
     /**********************************************************************
      */
-    
-    /* As timer is not synchronized (nor _uuidBytes), need to sync; but most
-     * importantly, synchronize on timer which may also be shared between
-     * multiple instances
-     */
+
     @Override
     public UUID generate()
     {

src/main/java/com/fasterxml/uuid/impl/TimeBasedReorderedGenerator.java

@@ -90,11 +90,7 @@ public TimeBasedReorderedGenerator(EthernetAddress ethAddr, UUIDTimer timer)
     /* UUID generation
     /**********************************************************************
      */
-    
-    /* As timer is not synchronized (nor _uuidBytes), need to sync; but most
-     * importantly, synchronize on timer which may also be shared between
-     * multiple instances
-     */
+
     @Override
     public UUID generate()
     {