More clean up for Unicode corrigendum #9

Fix some more testcases.
diff --git a/tests/utf8.txt b/tests/utf8.txt
index 3f1f22c..194d1b5 100644
--- a/tests/utf8.txt
+++ b/tests/utf8.txt
@@ -62,7 +62,7 @@
 000007ff
 
 ￿
-NOTUNICODE
+VALID
 0000ffff
 
 ÷¿¿¿
@@ -96,7 +96,7 @@
 0010fffd
 
 􏿿
-NOTUNICODE
+VALID
 0010ffff
 
 ô€€
@@ -279,16 +279,6 @@
 NOTUNICODE
 dbff dfff
 
-# Other illegal code positions
-
-￾
-NOTUNICODE
-fffe
-
-￿
-NOTUNICODE
-ffff
-
 ################
 #
 # Some more tests, not from Markus Kuhn's file