Remove U+U2042 ASTERISM from the longpress special-character dialog.

(It does not exist in Droid Sans Fallback.)

http://b/2220888

Change-Id: I5eb95ef425a1ac4440fcc9cd106fc21f3d702ea4
diff --git a/res/xml/kbd_symbols.xml b/res/xml/kbd_symbols.xml
index 48afd89..b1b75c6 100755
--- a/res/xml/kbd_symbols.xml
+++ b/res/xml/kbd_symbols.xml
@@ -73,7 +73,7 @@
         <Key android:codes="38" android:keyLabel="&amp;"/>
         <Key android:codes="42" android:keyLabel="*"
                 android:popupKeyboard="@xml/kbd_popup_template"
-                android:popupCharacters="†‡⁂★"
+                android:popupCharacters="†‡★"
         />
         <Key android:codes="45" android:keyLabel="-"
                 android:popupKeyboard="@xml/kbd_popup_template"