Remove tab key from phone layout of 7 inch tablet

Bug: 6411288
Change-Id: Ie3836becf787536b7346150008053a985280f61b
diff --git a/java/res/xml-sw600dp/kbd_phone.xml b/java/res/xml-sw600dp/kbd_phone.xml
index 72acef2..ef20910 100644
--- a/java/res/xml-sw600dp/kbd_phone.xml
+++ b/java/res/xml-sw600dp/kbd_phone.xml
@@ -20,7 +20,7 @@
 
 <Keyboard
     xmlns:latin="http://schemas.android.com/apk/res/com.android.inputmethod.latin"
-    latin:keyWidth="15.00%p"
+    latin:keyWidth="18.00%p"
 >
     <include
         latin:keyboardLayout="@xml/rows_phone" />