Remove symbols shifted layout related code

This is a follow up of I7fe6520e4e.

Bug: 9059539
Change-Id: Idb39906ddb1e2234a0d1c7c4d5e6fc728090e79e
diff --git a/java/res/xml/rowkeys_pcqwerty1.xml b/java/res/xml/rowkeys_pcqwerty1.xml
index b2d1d37..2822d92 100644
--- a/java/res/xml/rowkeys_pcqwerty1.xml
+++ b/java/res/xml/rowkeys_pcqwerty1.xml
@@ -78,7 +78,7 @@
                 latin:keyLabel="="
                 latin:moreKeys="+" />
         </case>
-        <!-- keyboardLayoutSetElement="alphabet*Shifted|symbols*" -->
+        <!-- keyboardLayoutSetElement="alphabet*Shifted|symbols" -->
         <default>
             <include
                 latin:keyboardLayout="@xml/keys_pcqwerty_symbols1" />