🚀 go-pugleaf

I used another profile�s name, because I don�t have the old one installed anymore, You�ll have to be exact about the letters though.
And from a prepress-standpoint I�d like to point out that removing the profile as opposed to �Convert to Profile� seems a peculiar practice, though of course Your reasons for doing so may be valid indeed.
You could try:
var myDocument = app.activeDocument;
if (myDocument.colorProfileName == "U.S. Web Coated (SWOP) v2") {
	// =======================================================
	var idassignProfile = stringIDToTypeID( "assignProfile" );
		var desc2 = new ActionDescriptor();
		var idnull = charIDToTypeID( "null" );
			var ref1 = new ActionReference();
			var idDcmn = charIDToTypeID( "Dcmn" );
			var idOrdn = charIDToTypeID( "Ordn" );
			var idTrgt = charIDToTypeID( "Trgt" );
			ref1.putEnumerated( idDcmn, idOrdn, idTrgt );
		desc2.putReference( idnull, ref1 );
		var idmanage = stringIDToTypeID( "manage" );
		desc2.putBoolean( idmanage, false );
	executeAction( idassignProfile, desc2, DialogModes.NO );
	}
else {
	};