If you used Greg's macro to add the highlight then
Sub Macro2()
'Graham Mayor - http://www.gmayor.com - Last updated - 02 Jul 2017
Dim oRng As Range
Set oRng = ActiveDocument.Range
With oRng.Find
Do While .Execute(FindText:="[A-Z]*>", MatchWildcards:=True)
If oRng.HighlightColorIndex = wdYellow Then
oRng.Text = ""
End If
oRng.Collapse 0
Loop
End With
lbl_Exit:
Exit Sub
End Sub
or to remove ALL (or only yellow) highlighted text
Sub Macro3()
'Graham Mayor - http://www.gmayor.com - Last updated - 02 Jul 2017
Dim oRng As Range
Set oRng = ActiveDocument.Range
With oRng.Find
.Highlight = True
Do While .Execute(Forward:=True)
If oRng.HighlightColorIndex = wdYellow Then 'Optionally remove only yellow highlighted text
oRng.Text = ""
End If 'Optional with above
oRng.Collapse 0
Loop
End With
lbl_Exit:
Exit Sub
End Sub