Removed surplus initializations from ngx_conf_set_path_slot().

An instance of ngx_path_t is already zeroed by ngx_pcalloc().

src/core/ngx_file.c

diff --git a/src/core/ngx_file.c b/src/core/ngx_file.c
index a6ef100..176bbb6 100644
--- a/src/core/ngx_file.c
+++ b/src/core/ngx_file.c
@@ -359,9 +359,6 @@
         return NULL;
     }
 
-    path->len = 0;
-    path->manager = NULL;
-    path->loader = NULL;
     path->conf_file = cf->conf_file->file.name.data;
     path->line = cf->conf_file->line;