Merge branch 'bw/submodule-config-cleanup'

Code clean-up to avoid mixing values read from the .gitmodules file
and values read from the .git/config file.

* bw/submodule-config-cleanup:
  submodule: remove gitmodules_config
  unpack-trees: improve loading of .gitmodules
  submodule-config: lazy-load a repository's .gitmodules file
  submodule-config: move submodule-config functions to submodule-config.c
  submodule-config: remove support for overlaying repository config
  diff: stop allowing diff to have submodules configured in .git/config
  submodule: remove submodule_config callback routine
  unpack-trees: don't respect submodule.update
  submodule: don't rely on overlayed config when setting diffopts
  fetch: don't overlay config with submodule-config
  submodule--helper: don't overlay config in update-clone
  submodule--helper: don't overlay config in remote_submodule_branch
  add, reset: ensure submodules can be added or reset
  submodule: don't use submodule_from_name
  t7411: check configuration parsing errors

1 files changed, 0 insertions, 3 deletions

diff --git a/diff.c b/diff.c
index 24bec41114..a74cc08488 100644
--- a/diff.c
+++ b/diff.c
@@ -401,9 +401,6 @@ int git_diff_basic_config(const char *var, const char *value, void *cb)
 		return 0;
 	}
 
-	if (starts_with(var, "submodule."))
-		return parse_submodule_config_option(var, value);
-
 	if (git_diff_heuristic_config(var, value, cb) < 0)
 		return -1;