Most of you don't want Recycle Bin Icon on your Desktop because you use Shift + Delete method to Delete files permamently .So Recycle Bin is useless for you .Now to Remove it from your Desktop follw this Tutorial.
1.First,type gpedit.msc in Run.
2.Now in Group Policy Window find this:
User Configration>>Administrative Template>>Desktop
3. Now Set the Value of ""Remove Recycle Bin icon From Desktop"" to ""Enabled"".
Now you have done,Enjoy.