git-add--interactive: remove hunk coalescing

Current git-apply has no trouble at all applying chunks that have
overlapping context, as produced by the splitting feature. So we can
drop the manual coalescing.

Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

git-add--interactive.perl

@@ -682,93 +682,6 @@ sub split_hunk {
 	return @split;
 }
 
-sub find_last_o_ctx {
-	my ($it) = @_;
-	my $text = $it->{TEXT};
-	my ($o_ofs, $o_cnt) = parse_hunk_header($text->[0]);
-	my $i = @{$text};
-	my $last_o_ctx = $o_ofs + $o_cnt;
-	while (0 < --$i) {
-		my $line = $text->[$i];
-		if ($line =~ /^ /) {
-			$last_o_ctx--;
-			next;
-		}
-		last;
-	}
-	return $last_o_ctx;
-}
-
-sub merge_hunk {
-	my ($prev, $this) = @_;
-	my ($o0_ofs, $o0_cnt, $n0_ofs, $n0_cnt) =
-	    parse_hunk_header($prev->{TEXT}[0]);
-	my ($o1_ofs, $o1_cnt, $n1_ofs, $n1_cnt) =
-	    parse_hunk_header($this->{TEXT}[0]);
-
-	my (@line, $i, $ofs, $o_cnt, $n_cnt);
-	$ofs = $o0_ofs;
-	$o_cnt = $n_cnt = 0;
-	for ($i = 1; $i < @{$prev->{TEXT}}; $i++) {
-		my $line = $prev->{TEXT}[$i];
-		if ($line =~ /^\+/) {
-			$n_cnt++;
-			push @line, $line;
-			next;
-		}
-
-		last if ($o1_ofs <= $ofs);
-
-		$o_cnt++;
-		$ofs++;
-		if ($line =~ /^ /) {
-			$n_cnt++;
-		}
-		push @line, $line;
-	}
-
-	for ($i = 1; $i < @{$this->{TEXT}}; $i++) {
-		my $line = $this->{TEXT}[$i];
-		if ($line =~ /^\+/) {
-			$n_cnt++;
-			push @line, $line;
-			next;
-		}
-		$ofs++;
-		$o_cnt++;
-		if ($line =~ /^ /) {
-			$n_cnt++;
-		}
-		push @line, $line;
-	}
-	my $head = ("@@ -$o0_ofs" .
-		    (($o_cnt != 1) ? ",$o_cnt" : '') .
-		    " +$n0_ofs" .
-		    (($n_cnt != 1) ? ",$n_cnt" : '') .
-		    " @@\n");
-	@{$prev->{TEXT}} = ($head, @line);
-}
-
-sub coalesce_overlapping_hunks {
-	my (@in) = @_;
-	my @out = ();
-
-	my ($last_o_ctx);
-
-	for (grep { $_->{USE} } @in) {
-		my $text = $_->{TEXT};
-		my ($o_ofs) = parse_hunk_header($text->[0]);
-		if (defined $last_o_ctx &&
-		    $o_ofs <= $last_o_ctx) {
-			merge_hunk($out[-1], $_);
-		}
-		else {
-			push @out, $_;
-		}
-		$last_o_ctx = find_last_o_ctx($out[-1]);
-	}
-	return @out;
-}
 
 sub help_patch_cmd {
 	print colored $help_color, <<\EOF ;
@@ -962,8 +875,6 @@ sub patch_update_file {
 		}
 	}
 
-	@hunk = coalesce_overlapping_hunks(@hunk);
-
 	my $n_lofs = 0;
 	my @result = ();
 	if ($mode->{USE}) {