remote: get rid of the run-time refspec setters

These were left over from the culling as it's not clear which use-cases
might benefit from this. It is not clear that we want to support any
use-case which depends on changing the remote's idea of the base
refspecs rather than passing in different per-operation refspec list, so
remove these functions.

CHANGELOG.md

@@ -97,6 +97,10 @@ support for HTTPS connections insead of OpenSSL.
   `git_remote_set_transport()` have been removed and the remote no
   longer stores this configuration.
 
+* `git_remote_set_fetch_refpecs()` and
+  `git_remote_set_push_refspecs()` have been removed. There is no
+  longer a way to set the base refspecs at run-time.
+
 ### Breaking API changes
 
 * `git_smart_subtransport_cb` now has a `param` parameter.

include/git2/remote.h

@@ -190,16 +190,6 @@ GIT_EXTERN(int) git_remote_add_fetch(git_repository *repo, const char *remote, c
 GIT_EXTERN(int) git_remote_get_fetch_refspecs(git_strarray *array, const git_remote *remote);
 
 /**
- * Set the remote's list of fetch refspecs
- *
- * The contents of the string array are copied.
- *
- * @param remote the remote to modify
- * @param array the new list of fetch resfpecs
- */
-GIT_EXTERN(int) git_remote_set_fetch_refspecs(git_remote *remote, git_strarray *array);
-
-/**
  * Add a push refspec to the remote's configuration
  *
  * Add the given refspec to the push list in the configuration. No
@@ -224,16 +214,6 @@ GIT_EXTERN(int) git_remote_add_push(git_repository *repo, const char *remote, co
 GIT_EXTERN(int) git_remote_get_push_refspecs(git_strarray *array, const git_remote *remote);
 
 /**
- * Set the remote's list of push refspecs
- *
- * The contents of the string array are copied.
- *
- * @param remote the remote to modify
- * @param array the new list of push resfpecs
- */
-GIT_EXTERN(int) git_remote_set_push_refspecs(git_remote *remote, git_strarray *array);
-
-/**
  * Get the number of refspecs for a remote
  *
  * @param remote the remote

src/remote.c

@@ -318,8 +318,9 @@ int git_remote_create_anonymous(git_remote **out, git_repository *repo, const ch
 
 int git_remote_dup(git_remote **dest, git_remote *source)
 {
+	size_t i;
 	int error = 0;
-	git_strarray refspecs = { 0 };
+	git_refspec *spec;
 	git_remote *remote = git__calloc(1, sizeof(git_remote));
 	GITERR_CHECK_ALLOC(remote);
 
@@ -349,22 +350,15 @@ int git_remote_dup(git_remote **dest, git_remote *source)
 		goto cleanup;
 	}
 
-	if ((error = git_remote_get_fetch_refspecs(&refspecs, source)) < 0 ||
-	    (error = git_remote_set_fetch_refspecs(remote, &refspecs)) < 0)
-		goto cleanup;
-
-	git_strarray_free(&refspecs);
-
-	if ((error = git_remote_get_push_refspecs(&refspecs, source)) < 0 ||
-	    (error = git_remote_set_push_refspecs(remote, &refspecs)) < 0)
-		goto cleanup;
+	git_vector_foreach(&source->refspecs, i, spec) {
+		if ((error = add_refspec(remote, spec->string, !spec->push)) < 0)
+			goto cleanup;
+	}
 
 	*dest = remote;
 
 cleanup:
 
-	git_strarray_free(&refspecs);
-
 	if (error < 0)
 		git__free(remote);
 
@@ -2046,16 +2040,6 @@ static int set_refspecs(git_remote *remote, git_strarray *array, int push)
 	return 0;
 }
 
-int git_remote_set_fetch_refspecs(git_remote *remote, git_strarray *array)
-{
-	return set_refspecs(remote, array, false);
-}
-
-int git_remote_set_push_refspecs(git_remote *remote, git_strarray *array)
-{
-	return set_refspecs(remote, array, true);
-}
-
 static int copy_refspecs(git_strarray *array, const git_remote *remote, unsigned int push)
 {
 	size_t i;