Core: removed extra ngx_alloc() and ngx_calloc() prototypes.

src/core/ngx_palloc.h

diff --git a/src/core/ngx_palloc.h b/src/core/ngx_palloc.h
index d652829..376e012 100644
--- a/src/core/ngx_palloc.h
+++ b/src/core/ngx_palloc.h
@@ -72,9 +72,6 @@
 } ngx_pool_cleanup_file_t;
 
 
-void *ngx_alloc(size_t size, ngx_log_t *log);
-void *ngx_calloc(size_t size, ngx_log_t *log);
-
 ngx_pool_t *ngx_create_pool(size_t size, ngx_log_t *log);
 void ngx_destroy_pool(ngx_pool_t *pool);
 void ngx_reset_pool(ngx_pool_t *pool);