Remove symbols shifted layout related code

This is a follow up of I7fe6520e4e.

Bug: 9059539
Change-Id: Idb39906ddb1e2234a0d1c7c4d5e6fc728090e79e
diff --git a/java/res/xml/row_pcqwerty5.xml b/java/res/xml/row_pcqwerty5.xml
index a8940af..7fbcd8e 100644
--- a/java/res/xml/row_pcqwerty5.xml
+++ b/java/res/xml/row_pcqwerty5.xml
@@ -26,7 +26,7 @@
     >
         <switch>
             <case
-                latin:keyboardLayoutSetElement="symbols|symbolsShifted"
+                latin:keyboardLayoutSetElement="symbols"
             >
                 <Key
                     latin:keyStyle="toAlphaKeyStyle"