[dash] Delete unused variable

Change-Id: If4f4782b7038d7dab0bc5b34438422dfe2efec25
diff --git a/third_party/uapp/dash/src/nodes.c b/third_party/uapp/dash/src/nodes.c
index ea8c022..a6dd3ab 100644
--- a/third_party/uapp/dash/src/nodes.c
+++ b/third_party/uapp/dash/src/nodes.c
@@ -740,7 +740,6 @@
 	if (length < sizeof(size_t)) {
 		return NULL;
 	}
-	size_t total_size = *(size_t*)buffer;
 
 	struct state_header header;
 	memcpy(&header, buffer, sizeof(header));
diff --git a/third_party/uapp/dash/src/nodes.c.pat b/third_party/uapp/dash/src/nodes.c.pat
index 94b2741..dcf0bb3 100644
--- a/third_party/uapp/dash/src/nodes.c.pat
+++ b/third_party/uapp/dash/src/nodes.c.pat
@@ -382,7 +382,6 @@
 	if (length < sizeof(size_t)) {
 		return NULL;
 	}
-	size_t total_size = *(size_t*)buffer;
 
 	struct state_header header;
 	memcpy(&header, buffer, sizeof(header));