[PATCH 01/12] treewide: remove unnecessary includes from header files

["Elijah Newren via GitGitGadget" <gitgitgadget@gmail.com>]

From: Elijah Newren <newren@gmail.com>

There are three kinds of unnecessary includes:
  * includes which aren't directly needed, but which include some other
    forgotten include
  * includes which could be replaced by a simple forward declaration of
    some structs
  * includes which aren't needed at all

Remove the third kind of include.  Subsequent commits (and a subsequent
series) will work on removing some of the other kinds of includes.

Signed-off-by: Elijah Newren <newren@gmail.com>
---
 fetch-pack.h       | 1 -
 midx.h             | 1 -
 ref-filter.h       | 1 -
 submodule-config.h | 1 -
 4 files changed, 4 deletions(-)

diff --git a/fetch-pack.h b/fetch-pack.h
index 8c7752fc821..6775d265175 100644
--- a/fetch-pack.h
+++ b/fetch-pack.h
@@ -2,7 +2,6 @@
 #define FETCH_PACK_H
 
 #include "string-list.h"
-#include "run-command.h"
 #include "protocol.h"
 #include "list-objects-filter-options.h"
 #include "oidset.h"
diff --git a/midx.h b/midx.h
index a5d98919c85..eb57a37519c 100644
--- a/midx.h
+++ b/midx.h
@@ -1,7 +1,6 @@
 #ifndef MIDX_H
 #define MIDX_H
 
-#include "repository.h"
 #include "string-list.h"
 
 struct object_id;
diff --git a/ref-filter.h b/ref-filter.h
index 1524bc463a5..4ecb6ab1c60 100644
--- a/ref-filter.h
+++ b/ref-filter.h
@@ -3,7 +3,6 @@
 
 #include "gettext.h"
 #include "oid-array.h"
-#include "refs.h"
 #include "commit.h"
 #include "string-list.h"
 #include "strvec.h"
diff --git a/submodule-config.h b/submodule-config.h
index 2a37689cc27..e8164cca3e4 100644
--- a/submodule-config.h
+++ b/submodule-config.h
@@ -2,7 +2,6 @@
 #define SUBMODULE_CONFIG_CACHE_H
 
 #include "config.h"
-#include "hashmap.h"
 #include "submodule.h"
 #include "strbuf.h"
 #include "tree-walk.h"
-- 
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