[csv-utils] don't decode when you've encoded special chars (#5970)

* [csv-utils] don't decode when you've encoded special chars

* Update csvutils.py

frappe/utils/csvutils.py

@@ -50,13 +50,12 @@ def read_csv_content(fcontent, ignore_encoding=False):
 				continue
 
 		if not decoded:
-			frappe.msgprint(_("Unknown file encoding. Tried utf-8, windows-1250, windows-1252."),
-				raise_exception=True)
+			frappe.msgprint(_("Unknown file encoding. Tried utf-8, windows-1250, windows-1252."), raise_exception=True)
 
 	fcontent = fcontent.encode("utf-8")
 	content  = [ ]
 	for line in fcontent.splitlines(True):
-		content.append(frappe.safe_decode(line))
+		content.append(line)
 
 	try:
 		rows = []