Merge branch 'tk/sigchain-unnecessary-post-tempfile'

Remove no-longer used #include.

* tk/sigchain-unnecessary-post-tempfile:
  shallow: remove unused #include "sigchain.h"
  read-cache: remove unused #include "sigchain.h"
  diff: remove unused #include "sigchain.h"
  credential-cache--daemon: remove unused #include "sigchain.h"

credential-cache--daemon.c

@@ -2,7 +2,6 @@
 #include "tempfile.h"
 #include "credential.h"
 #include "unix-socket.h"
-#include "sigchain.h"
 #include "parse-options.h"
 
 static struct tempfile socket_file;

diff.c

@@ -13,7 +13,6 @@
 #include "run-command.h"
 #include "utf8.h"
 #include "userdiff.h"
-#include "sigchain.h"
 #include "submodule-config.h"
 #include "submodule.h"
 #include "ll-merge.h"

read-cache.c

@@ -17,7 +17,6 @@
 #include "strbuf.h"
 #include "varint.h"
 #include "split-index.h"
-#include "sigchain.h"
 #include "utf8.h"
 
 static struct cache_entry *refresh_cache_entry(struct cache_entry *ce,

shallow.c

@@ -10,7 +10,6 @@
 #include "diff.h"
 #include "revision.h"
 #include "commit-slab.h"
-#include "sigchain.h"
 
 static int is_shallow = -1;
 static struct stat_validity shallow_stat;