fix: remove http2 hardcode limitation in ngx.location subrequest API

Author: oowl

src/ngx_http_lua_subrequest.c

@@ -173,12 +173,6 @@ ngx_http_lua_ngx_location_capture_multi(lua_State *L)
         return luaL_error(L, "no request object found");
     }
 
-#if (NGX_HTTP_V2)
-    if (r->main->stream) {
-        return luaL_error(L, "http2 requests not supported yet");
-    }
-#endif
-
     ctx = ngx_http_get_module_ctx(r, ngx_http_lua_module);
     if (ctx == NULL) {
         return luaL_error(L, "no ctx found");