MT#55283 remove poller_isblocked

There is negligible to non existant benefit to this loop condition
shortcut.

Change-Id: I7919deec0a65d0c025da0523c3657e3f7a643017

lib/poller.c

@@ -292,30 +292,6 @@ void poller_error(struct poller *p, void *fdp) {
 	it->blocked = 1;
 }
 
-int poller_isblocked(struct poller *p, void *fdp) {
-	int fd = GPOINTER_TO_INT(fdp);
-	int ret;
-
-	if (!p || fd < 0)
-		return -1;
-
-	LOCK(&p->lock);
-
-	ret = -1;
-	if (fd >= p->items->len)
-		goto out;
-	struct poller_item_int *it;
-	if (!(it = p->items->pdata[fd]))
-		goto out;
-	if (!it->item.writeable)
-		goto out;
-
-	ret = it->blocked ? 1 : 0;
-
-out:
-	return ret;
-}
-
 void poller_loop(void *d) {
 	struct poller *p = d;
 	int poller_size = rtpe_common_config_ptr->poller_size;

lib/poller.h

@@ -35,7 +35,6 @@ bool poller_del_item(struct poller *, int);
 bool poller_del_item_callback(struct poller *, int, void (*)(void *), void *);
 
 void poller_blocked(struct poller *, void *);
-int poller_isblocked(struct poller *, void *);
 void poller_error(struct poller *, void *);
 
 void poller_loop(void *);

lib/streambuf.c

@@ -209,7 +209,7 @@ void streambuf_write(struct streambuf *b, const char *s, unsigned int len) {
 
 	mutex_lock(&b->lock);
 
-	while (len && !poller_isblocked(b->poller, b->fd_ptr)) {
+	while (len) {
 		out = (len > 1024) ? 1024 : len;
 		ret = b->funcs->write(b->fd_ptr, s, out);