Move "daemonIsOpen" to "2server.go"

daemon/3client.go

@@ -1,12 +0,0 @@
-package daemon
-
-import "os"
-
-func daemonIsOpen() bool {
-	// check if socketPath exists and is a file
-	fileInfo, err := os.Stat(socketPath)
-	if err != nil {
-		return false
-	}
-	return !fileInfo.IsDir()
-}