[PATCH 1/3] xdiff: drop CMP_ENV macro from xhistogram

This macro has been unused since 43ca7530df (xdiff/xhistogram: rely on
xdl_trim_ends(), 2011-08-01). The function that called it went away
there, and its use in the CMP() macro was inlined. It probably should
have been deleted then, but nobody noticed.

Signed-off-by: Jeff King <redacted>
---
This one isn't strictly enabled by Phillip's new patches, but it cleans
up an unused caller of cmp_recs() so we don't have to worry about it in
the next patch.

 xdiff/xhistogram.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/xdiff/xhistogram.c b/xdiff/xhistogram.c
index 6c1c88a69a..399cc236d7 100644
--- a/xdiff/xhistogram.c
+++ b/xdiff/xhistogram.c

@@ -95,9 +95,6 @@ static int cmp_recs(xpparam_t const *xpp,
 
 }
 
-#define CMP_ENV(xpp, env, s1, l1, s2, l2) \
-	(cmp_recs(xpp, REC(env, s1, l1), REC(env, s2, l2)))
-
 #define CMP(i, s1, l1, s2, l2) \
 	(cmp_recs(i->xpp, REC(i->env, s1, l1), REC(i->env, s2, l2)))
 

-- 
2.34.1.436.g8c445b282e