remove useless references to pecx

it is only needed in the esi parser and for some sanity checks

src/vdp_pesi.c

@@ -253,9 +253,9 @@ struct bytes_tree {
 
 /*
  * pesi_tree is a global context for the entire ESI tree started at level 0.
- * pecx is local to each subrequest, allocated in req WS.
+ * pesi is local to each subrequest, allocated in req WS.
  *
- * XXX remove and merge with bytes_tree ?
+ * XXX merge pesi_tree with bytes_tree ?
  */
 
 struct pesi;
@@ -910,7 +910,6 @@ ved_task(struct worker *wrk, void *priv)
 	struct sess *sp;
 	struct pesi *pesi;
 	struct pesi_tree *pesi_tree;
-	struct pecx *pecx;
 	struct node *node;
 	enum req_fsm_nxt s;
 
@@ -937,8 +936,6 @@ ved_task(struct worker *wrk, void *priv)
 	CAST_OBJ_NOTNULL(pesi, req->transport_priv, PESI_MAGIC);
 	pesi_tree = pesi->pesi_tree;
 	CHECK_OBJ_NOTNULL(pesi_tree, PESI_TREE_MAGIC);
-	pecx = pesi->pecx;
-	CHECK_OBJ_NOTNULL(pecx, PECX_MAGIC);
 	pesi->wrk = wrk;
 	node = pesi->node;
 	CHECK_OBJ_NOTNULL(node, NODE_MAGIC);
@@ -1116,7 +1113,6 @@ vped_include(struct req *preq, const char *src, const char *host,
 {
 	struct worker *wrk;
 	struct sess *sp;
-	struct pecx *pecx, *npecx;
 	struct pesi_tree *pesi_tree;
 	struct req *req;
 	struct bytes_tree *tree;
@@ -1128,8 +1124,6 @@ vped_include(struct req *preq, const char *src, const char *host,
 	sp = preq->sp;
 	CHECK_OBJ_NOTNULL(sp, SESS_MAGIC);
 	CHECK_OBJ_NOTNULL(pesi, PESI_MAGIC);
-	pecx = pesi->pecx;
-	CHECK_OBJ_NOTNULL(pecx, PECX_MAGIC);
 	pesi_tree = pesi->pesi_tree;
 	CHECK_OBJ_NOTNULL(pesi_tree, PESI_TREE_MAGIC);
 	tree = pesi_tree->tree;
@@ -1222,8 +1216,6 @@ vped_include(struct req *preq, const char *src, const char *host,
 		return (-1);
 	}
 
-	npecx = pesi2->pecx;
-	AZ(npecx->state);
 	pesi2->node = node;
 
 	req->transport_priv = pesi2;
@@ -1905,7 +1897,6 @@ pesi_buf_bytes(struct req *req, enum vdp_action act, void **priv,
 
 	CHECK_OBJ_NOTNULL(req, REQ_MAGIC);
 
-	CHECK_OBJ_NOTNULL(pesi->pecx, PECX_MAGIC);
 	parent = pesi->node;
 	CHECK_OBJ_NOTNULL(parent, NODE_MAGIC);
 	assert(parent->type == T_NEXUS);
@@ -2188,7 +2179,6 @@ vdp_pesi_fini(struct req *req, void **priv)
 	struct pesi *pesi;
 	struct pesi_tree *pesi_tree;
 	struct bytes_tree *bytes_tree;
-	struct pecx *pecx;
 	struct node *node;
 
 	CHECK_OBJ_NOTNULL(req, REQ_MAGIC);
@@ -2203,9 +2193,6 @@ vdp_pesi_fini(struct req *req, void **priv)
 
 	VSLdbgv(req, "vdp_pesi_fini: esi_level=%u", req->esi_level);
 
-	// XXX turn assertion - can we close in vdp_pesi_bytes?
-	pecx = pesi->pecx;
-	CHECK_OBJ_NOTNULL(pecx, PECX_MAGIC);
 	node = pesi->node;
 	CHECK_OBJ_NOTNULL(node, NODE_MAGIC);