remove unnecessary createworker function

lib/workers/create

@@ -1,5 +0,0 @@
-#!/bin/bash
-createworker() {
-	worker $1 &
-	workers[$1]=$!
-}

lib/workers/master

@@ -262,7 +262,8 @@ master() {
 			workerid=$(getworkerid)
 			workertasks[workerid]=$taskid
 			Update tasks status 1 <<<"id = $taskid"
-			createworker $workerid
+			worker $workerid &
+			workers[$workerid]=$!
 		fi
 	fi
 }