public ColumnFamilyDescriptor removeColumnFamily(final byte[] column) {
      return this.families.remove(column);
    }
Removes the ColumnFamilyDescriptor with name specified by the parameter column from the table
descriptor
@param column Name of the column family to be removed.
@return Column descriptor for the passed family name or the family on passed in column.
hbase-client/src/main/java/org/apache/hadoop/hbase/client/TableDescriptorBuilder.java