refactor: remove some unused includes (#19747)

- Remove autocmd.h from fileio.h
- Remove normal.h from main.h
- Move bufinfo_T from undo_defs.h to undo.c

3 files changed, 2 insertions, 3 deletions

diff --git a/src/nvim/os/env.c b/src/nvim/os/env.c
index 93d9497a11..98ef4bd0f6 100644
--- a/src/nvim/os/env.c
+++ b/src/nvim/os/env.c
@@ -10,7 +10,6 @@
 #include "nvim/charset.h"
 #include "nvim/eval.h"
 #include "nvim/ex_getln.h"
-#include "nvim/fileio.h"
 #include "nvim/macros.h"
 #include "nvim/map.h"
 #include "nvim/memory.h"
diff --git a/src/nvim/os/input.c b/src/nvim/os/input.c
index 8745ef8b37..bfe6d59dc6 100644
--- a/src/nvim/os/input.c
+++ b/src/nvim/os/input.c
@@ -8,9 +8,9 @@
 
 #include "nvim/api/private/defs.h"
 #include "nvim/ascii.h"
+#include "nvim/autocmd.h"
 #include "nvim/event/loop.h"
 #include "nvim/event/rstream.h"
-#include "nvim/fileio.h"
 #include "nvim/getchar.h"
 #include "nvim/keycodes.h"
 #include "nvim/main.h"
diff --git a/src/nvim/os/signal.c b/src/nvim/os/signal.c
index 581f025a0f..e592570966 100644
--- a/src/nvim/os/signal.c
+++ b/src/nvim/os/signal.c
@@ -9,10 +9,10 @@
 #endif
 
 #include "nvim/ascii.h"
+#include "nvim/autocmd.h"
 #include "nvim/eval.h"
 #include "nvim/event/loop.h"
 #include "nvim/event/signal.h"
-#include "nvim/fileio.h"
 #include "nvim/globals.h"
 #include "nvim/log.h"
 #include "nvim/main.h"