HADOOP-13559. Remove close() within try-with-resources in ChecksumFileSystem/ChecksumFs classes. (Contributed by Aaron Fabbri)

(cherry picked from commit 6fcb04c1780ac3dca5b986f1bcd558fffccb3eb9)

hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/ChecksumFileSystem.java

@@ -197,7 +197,6 @@ public abstract class ChecksumFileSystem extends FilterFileSystem {
                new ChecksumFSInputChecker(fs, file)) {
         checker.seek(position);
         nread = checker.read(b, off, len);
-        checker.close();
       }
       return nread;
     }

hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/ChecksumFs.java

@@ -179,7 +179,6 @@ public abstract class ChecksumFs extends FilterFs {
                new ChecksumFSInputChecker(fs, file)) {
         checker.seek(position);
         nread = checker.read(b, off, len);
-        checker.close();
       }
       return nread;
     }