default void deleteColumnFamily(TableName tableName, byte[] columnFamily) throws IOException {
    get(deleteColumnFamilyAsync(tableName, columnFamily), getSyncWaitTimeout(),
      TimeUnit.MILLISECONDS);
  }
Delete a column family from a table. Synchronous operation. Use
{@link #deleteColumnFamily(TableName, byte[])} instead because it returns a {@link Future} from
which you can learn whether success or failure.
@param tableName    name of table
@param columnFamily name of column family to be deleted
@throws IOException if a remote or network exception occurs
hbase-client/src/main/java/org/apache/hadoop/hbase/client/Admin.java