[PATCH 7/8] diff.c: omit check for line prefix in emit_line_0

[Stefan Beller <sbeller@google.com>]

As the previous patch made sure we only call emit_line_0 once per line,
we do not need the work around introduced in f7c3b4e2d8c (diff: add an
internal option to dual-color diffs of diffs, 2018-08-13) that would ensure
we'd emit 'diff_line_prefix(o)' just once per line.

By having just one call of emit_line_0 per line, the checks are dead code.

Signed-off-by: Stefan Beller <sbeller@google.com>
---
 diff.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/diff.c b/diff.c
index 4f430f44e64..7a23adf254d 100644
--- a/diff.c
+++ b/diff.c
@@ -629,10 +629,7 @@ static void emit_line_0(struct diff_options *o,
 	int nofirst;
 	FILE *file = o->file;
 
-	if (first)
-		fputs(diff_line_prefix(o), file);
-	else if (!len)
-		return;
+	fputs(diff_line_prefix(o), file);
 
 	if (len == 0) {
 		has_trailing_newline = (first == '\n');
-- 
2.18.0.865.gffc8e1a3cd6-goog