Remove non standard altq disciplines (codelq and fairq)

We aim to remove non standard kernel hooks to increase maintainability of the project and try to get more connection to standard FreeBSD.

Kernel support is also removed as of 15.1.10.

src/etc/inc/shaper.inc

@@ -72,9 +72,6 @@ function clean_child_queues($type, $mypath)
 		if (isset($ref['bandwidth'])) unset($ref['bandwidth']);
 		if (isset($ref['bandwidthtype'])) unset($ref['bandwidthtype']);
 		/* fall through */
-	case 'FAIRQ':
-		if (isset($ref['borrow'])) unset($ref['borrow']);
-		/* fall through */
 	case 'CBQ':
 		if (isset($ref['realtime'])) unset($ref['realtime']);
 		if (isset($ref['realtime1'])) unset($ref['realtime1']);
@@ -225,9 +222,6 @@ class altq_root_queue {
 		$this->qenabled = $value;
 	}
 	function CanHaveChildren() {
-		if ($this->GetScheduler() == "CODELQ")
-			return false;
-		else
 			return true;
 	}
 	function CanBeDeleted() {
@@ -373,9 +367,6 @@ class altq_root_queue {
 		case "CBQ":
 			$q =& new cbq_queue();
 			break;
-		case "FAIRQ":
-			$q =& new fairq_queue();
-			break;
 		default:
 			/* XXX: but should not happen anyway */
 			return;
@@ -523,22 +514,7 @@ class altq_root_queue {
 				return "\n";
 			}
 			$frule .= $rules;
-		} else if ($this->GetEnabled() == "on" && $this->GetScheduler() == "CODELQ") {
-			$rules = " altq on  " . get_real_interface($this->GetInterface());
-			if ($this->GetScheduler())
-				$rules .= " ".strtolower($this->GetScheduler());
-			if ($this->GetQlimit() > 0)
-				$rules .= " ( qlimit " . $this->GetQlimit() . " ) ";
-			if ($this->GetBandwidth()) {
-				$rules .= " bandwidth ".trim($this->GetBandwidth());
-				if ($this->GetBwscale())
-					$rules .= $this->GetBwscale();
-			}
-			if ($this->GetTbrConfig())
-				$rules .= " tbrsize ".$this->GetTbrConfig();
-
-			$rules .= " queue";
-		}
+		} 
 
 		$rules .= " \n";
 		return $rules;
@@ -619,14 +595,6 @@ class altq_root_queue {
 		if ($this->GetScheduler() == "CBQ")
 			$form .= " selected=\"selected\"";
 		$form .= ">CBQ</option>";
-		$form .= "<option value=\"FAIRQ\"";
-		if ($this->GetScheduler() == "FAIRQ")
-			$form .= " selected=\"selected\"";
-		$form .= ">FAIRQ</option>";
-		$form .= "<option value=\"CODELQ\"";
-		if ($this->GetScheduler() == "CODELQ")
-			$form .= " selected=\"selected\"";
-		$form .= ">CODELQ</option>";
 		$form .= "<option value=\"PRIQ\"";
 		if ($this->GetScheduler() == "PRIQ")
 			$form .= " selected=\"selected\"";