[pushed] Remove displaced_step_inferior_state::next

[Simon Marchi]

Commit

39a36629f68e ("Use std::forward_list for displaced_step_inferior_states")

missed removing the "next" field, while changing the hand-made linked
list in favor of std::forward_list. This patch fixes that.

gdb/ChangeLog:

* infrun.c (displaced_step_inferior_state) <next>: Remove.
---
gdb/ChangeLog | 4 ++++
gdb/infrun.c | 3 ---
2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 6973f427d0d2..f2b6f5633c02 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,7 @@
[phone] Simon Marchi <***@polymtl.ca>
+
+ * infrun.c (displaced_step_inferior_state) <next>: Remove.
+
2018-11-19 Tom Tromey <***@tromey.com>

* source.c (get_filename_and_charpos): Return void.
diff --git a/gdb/infrun.c b/gdb/infrun.c
index 1c48740404e0..3e9acb45aa98 100644
--- a/gdb/infrun.c
+++ b/gdb/infrun.c
@@ -1484,9 +1484,6 @@ displaced_step_closure::~displaced_step_closure () = default;
/* Per-inferior displaced stepping state. */
struct displaced_step_inferior_state
{
- /* Pointer to next in linked list. */
- struct displaced_step_inferior_state *next;
-
/* The process this displaced step state refers to. */
inferior *inf;