Revert "Support Emoji keyboard"

This reverts commit d7791a93b0dee268a9e97f06fe5abcf6082e0ed1.

Change-Id: I5ca4c0227f97540e8a22b487b5056dfa3611082b
diff --git a/java/res/xml/row_symbols4.xml b/java/res/xml/row_symbols4.xml
index bea139a..5c15da6 100644
--- a/java/res/xml/row_symbols4.xml
+++ b/java/res/xml/row_symbols4.xml
@@ -50,7 +50,7 @@
             latin:keyboardLayout="@xml/key_symbols_period"
             latin:backgroundType="functional" />
         <Key
-            latin:keyStyle="emojiKeyStyle"
+            latin:keyStyle="enterKeyStyle"
             latin:keyWidth="fillRight" />
     </Row>
 </merge>