MINOR: channel: Remove CF_READ_ACTIVITY

Thanks to previous changes, CF_READ_ACTIVITY flags can be removed.
Everywhere it was used, its value is now directly used
(CF_READ_EVENT|CF_READ_ERROR).
diff --git a/include/haproxy/channel-t.h b/include/haproxy/channel-t.h
index 56385eb..5996db4 100644
--- a/include/haproxy/channel-t.h
+++ b/include/haproxy/channel-t.h
@@ -57,7 +57,6 @@
 /* unused: 0x00000002 */
 #define CF_READ_TIMEOUT   0x00000004  /* timeout while waiting for producer */
 #define CF_READ_ERROR     0x00000008  /* unrecoverable error on producer side */
-#define CF_READ_ACTIVITY  (CF_READ_EVENT|CF_READ_ERROR)
 
 /* unused: 0x00000010 */
 #define CF_SHUTR          0x00000020  /* producer has already shut down */
@@ -123,7 +122,7 @@
 #define CF_ISRESP         0x80000000  /* 0 = request channel, 1 = response channel */
 
 /* Masks which define input events for stream analysers */
-#define CF_MASK_ANALYSER  (CF_READ_ATTACHED|CF_READ_ACTIVITY|CF_READ_TIMEOUT|CF_ANA_TIMEOUT|CF_WRITE_ACTIVITY|CF_WAKE_ONCE)
+#define CF_MASK_ANALYSER  (CF_READ_ATTACHED|CF_READ_EVENT|CF_READ_ERROR|CF_READ_TIMEOUT|CF_ANA_TIMEOUT|CF_WRITE_ACTIVITY|CF_WAKE_ONCE)
 
 /* Mask for static flags which cause analysers to be woken up when they change */
 #define CF_MASK_STATIC    (CF_SHUTR|CF_SHUTW|CF_SHUTR_NOW|CF_SHUTW_NOW)
diff --git a/include/haproxy/channel.h b/include/haproxy/channel.h
index b8d6c81..3b024e8 100644
--- a/include/haproxy/channel.h
+++ b/include/haproxy/channel.h
@@ -530,7 +530,7 @@
  */
 static inline void channel_check_timeouts(struct channel *chn)
 {
-	if (likely(!(chn->flags & (CF_SHUTR|CF_READ_TIMEOUT|CF_READ_ACTIVITY|CF_READ_NOEXP))) &&
+	if (likely(!(chn->flags & (CF_SHUTR|CF_READ_TIMEOUT|CF_READ_EVENT|CF_READ_ERROR|CF_READ_NOEXP))) &&
 	    unlikely(tick_is_expired(chn->rex, now_ms)))
 		chn->flags |= CF_READ_TIMEOUT;
 
diff --git a/src/stconn.c b/src/stconn.c
index 1876686..24b04cc 100644
--- a/src/stconn.c
+++ b/src/stconn.c
@@ -1226,7 +1226,7 @@
 
 		task_queue(task);
 	}
-	if (ic->flags & CF_READ_ACTIVITY)
+	if (ic->flags & (CF_READ_EVENT|CF_READ_ERROR))
 		ic->flags &= ~CF_READ_DONTWAIT;
 }
 
diff --git a/src/stream.c b/src/stream.c
index 0b951ce..f727788 100644
--- a/src/stream.c
+++ b/src/stream.c
@@ -1782,7 +1782,7 @@
 		 * timeout needs to be refreshed.
 		 */
 		if (!((req->flags | res->flags) &
-		      (CF_SHUTR|CF_READ_ACTIVITY|CF_READ_TIMEOUT|CF_SHUTW|
+		      (CF_SHUTR|CF_READ_EVENT|CF_READ_ERROR|CF_READ_TIMEOUT|CF_SHUTW|
 		       CF_WRITE_ACTIVITY|CF_WRITE_TIMEOUT|CF_ANA_TIMEOUT)) &&
 		    !(s->flags & SF_CONN_EXP) &&
 		    !((sc_ep_get(scf) | scb->flags) & SE_FL_ERROR) &&