Remove device checking of Emoji physical key

This CL also adds a settings option to enable/disable an Emoji-ALT
physical key.

Bug: 18122464
Change-Id: Iee1d97efec979a902b0492071d5e511ca1792ff0
diff --git a/java/res/values/strings.xml b/java/res/values/strings.xml
index 54bfc51..583c3b1 100644
--- a/java/res/values/strings.xml
+++ b/java/res/values/strings.xml
@@ -363,6 +363,12 @@
     <string name="prefs_keypress_sound_volume_settings">Keypress sound volume</string>
     <!-- Title of the settings for key long press delay [CHAR LIMIT=35] -->
     <string name="prefs_key_longpress_timeout_settings">Key long press delay</string>
+    <!-- TODO: Let's finalize title of the settings and remove translatable="false" -->
+    <!-- Title of the settings for enabling Emoji palette triggered by the Alt key on physical keyboards [CHAR LIMIT=35] -->
+    <string name="prefs_enable_emoji_alt_physical_key" translatable="false">Emoji for physical keyboard</string>
+    <!-- TODO: Let's finalize title of the settings and remove translatable="false" -->
+    <!-- Description of the settings for enabling Emoji palette triggered by the Alt key on physical keyboards [CHAR LIMIT=64] -->
+    <string name="prefs_enable_emoji_alt_physical_key_summary" translatable="false">Physical Alt key shows the emoji palette</string>
 
     <!-- Title of the button to revert to the default value of the device in the settings dialog [CHAR LIMIT=15] -->
     <string name="button_default">Default</string>