Merge "Remove legacy check for reversed ZWJ emoji sequences."

        sequence = tuple(ch for ch in sequence if ch != EMOJI_VS)

        all_sequences.add(sequence)

        sequence_pieces.update(sequence)

        if _emoji_sequences.get(sequence, None) == 'Emoji_Tag_Sequence':

            # Add reverse of all emoji ZWJ sequences, which are added to the

            # fonts as a workaround to get the sequences work in RTL text.

            # TODO: test if these are actually needed by Minikin/HarfBuzz.

            reversed_seq = reverse_emoji(sequence)

            all_sequences.add(reversed_seq)

            equivalent_emoji[reversed_seq] = sequence

    for sequence in adjusted_emoji_zwj_sequences.keys():

        sequence = tuple(ch for ch in sequence if ch != EMOJI_VS)

        all_sequences.add(sequence)

        sequence_pieces.update(sequence)

        # Add reverse of all emoji ZWJ sequences, which are added to the fonts

        # as a workaround to get the sequences work in RTL text.

        reversed_seq = reverse_emoji(sequence)

        all_sequences.add(reversed_seq)

        equivalent_emoji[reversed_seq] = sequence

    for first, second in SAME_FLAG_MAPPINGS:

        equivalent_emoji[first] = second