Remove unused imports in lcm/logging/Log.java
Remove unused imports in lcm/logging/Log.java

Remove unused imports java.awt.*, java.awt.event.* and java.util.* from
lcm-java/lcm/logging/Log.java. It is worth noting that importing
java.awt.* doesn't work on Android; removing these unused imports makes
it possible to use LCM in Android apps.

bluesquall/lcm,lcm-proj/lcm,lcm-proj/lcm,lcm-proj/lcm,lcm-proj/lcm,bluesquall/lcm,lcm-proj/lcm,bluesquall/lcm,bluesquall/lcm,bluesquall/lcm,lcm-proj/lcm,bluesquall/lcm,lcm-proj/lcm,bluesquall/lcm,lcm-proj/lcm