How to remove notes in ppt slides.
In PowerPoint, Tools->Macro->Visual Basic Editor
create a new module and paste the following codes
Sub BlitzTheNotesText()
Dim oSl As Slide
Dim oSh As Shape
For Each oSl In ActivePresentation.Slides
' Locate and delete the notes page body text placeholder
For Each oSh In oSl.NotesPage.Shapes
If oSh.Type = msoPlaceholder Then
' Is the shape a body text placeholder? If so, delete it.
If oSh.PlaceholderFormat.Type = ppPlaceholderBody Then
oSh.Delete
' or if you'd rather not delete the notes, use oSh.Visible = False
' change it to oSh.Visible = True and rerun the macro to reverse the effect
End If
End If
Next oSh
Next oSl
End Sub

Source: http://pptfaq.com/FAQ00178.htm