Removed an erroneous @Override tag, and some commented-out code.

git-svn-id: https://valelab.ucsf.edu/svn/micromanager2/trunk@13806 d0ab736e-dc22-4aeb-8dc9-08def0aa14fd
Removed @Override tags from all functions not exposed in the ImageCache.java interface.

git-svn-id: https://valelab.ucsf.edu/svn/micromanager2/trunk@13807 d0ab736e-dc22-4aeb-8dc9-08def0aa14fd