Fixup BufferedStreamHandle

Author: gab1one

src/main/java/org/scijava/io/handle/DefaultBufferedStreamHandle.java

@@ -192,11 +192,6 @@ public boolean isWritable() {
 		return !closed && handle.isWritable();
 	}
 
-	@Override
-	public boolean exists() throws IOException {
-		return handle.exists();
-	}
-
 	@Override
 	public Class<L> getType() {
 		return handle.getType();