CLEANUP: tree-wide: remove unneeded include time.h in ~20 files

20 files used to have haproxy/time.h included only for now_ms, and two
were missing it for other things but used to inherit from it via other
files.
diff --git a/src/sample.c b/src/sample.c
index 8fcacb1..bda5908 100644
--- a/src/sample.c
+++ b/src/sample.c
@@ -39,6 +39,7 @@
 #include <haproxy/sample.h>
 #include <haproxy/sink.h>
 #include <haproxy/stick_table.h>
+#include <haproxy/time.h>
 #include <haproxy/tools.h>
 #include <haproxy/uri_auth-t.h>
 #include <haproxy/vars.h>