Remove unused imports

Change-Id: I35370c66e54d93d9b0aa3995e300706956ec0923
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>

org.eclipse.jgit/src/org/eclipse/jgit/notes/NoteMapMerger.java

@@ -56,8 +56,6 @@ import org.eclipse.jgit.lib.Repository;
 import org.eclipse.jgit.merge.MergeStrategy;
 import org.eclipse.jgit.merge.Merger;
 import org.eclipse.jgit.merge.ThreeWayMerger;
-import org.eclipse.jgit.treewalk.AbstractTreeIterator;
-import org.eclipse.jgit.treewalk.TreeWalk;
 
 /**
  * Three-way note tree merge.

org.eclipse.jgit/src/org/eclipse/jgit/revwalk/filter/PatternMatchRevFilter.java

@@ -54,7 +54,6 @@ import org.eclipse.jgit.internal.JGitText;
 import org.eclipse.jgit.lib.Constants;
 import org.eclipse.jgit.revwalk.RevCommit;
 import org.eclipse.jgit.revwalk.RevWalk;
-import org.eclipse.jgit.util.RawCharSequence;
 
 /**
  * Abstract filter that searches text using extended regular expressions.