submodule: don't use submodule_from_name

The function 'submodule_from_name()' is being used incorrectly here as a
submodule path is being used instead of a submodule name.  Since the
correct function to use with a path to a submodule is already being used
('submodule_from_path()') let's remove the call to
'submodule_from_name()'.

Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

submodule.c

@@ -1177,8 +1177,6 @@ static int get_next_submodule(struct child_process *cp,
 			continue;
 
 		submodule = submodule_from_path(&null_oid, ce->name);
-		if (!submodule)
-			submodule = submodule_from_name(&null_oid, ce->name);
 
 		default_argv = "yes";
 		if (spf->command_line_option == RECURSE_SUBMODULES_DEFAULT) {