Remove unused Keyboard.CODE_CANCEL

Change-Id: Ic2eab17e525901a1cf7096ebe7d24ae78624ed2e
diff --git a/java/src/com/android/inputmethod/keyboard/Keyboard.java b/java/src/com/android/inputmethod/keyboard/Keyboard.java
index 2bc140e..f234507 100644
--- a/java/src/com/android/inputmethod/keyboard/Keyboard.java
+++ b/java/src/com/android/inputmethod/keyboard/Keyboard.java
@@ -71,7 +71,6 @@
     public static final int CODE_SHIFT = -1;
     public static final int CODE_SWITCH_ALPHA_SYMBOL = -2;
     public static final int CODE_CAPSLOCK = -3;
-    public static final int CODE_CANCEL = -4;
     public static final int CODE_DELETE = -5;
     public static final int CODE_SETTINGS = -6;
     public static final int CODE_SHORTCUT = -7;
diff --git a/java/src/com/android/inputmethod/latin/LatinIME.java b/java/src/com/android/inputmethod/latin/LatinIME.java
index 5d075b1..54989bb 100644
--- a/java/src/com/android/inputmethod/latin/LatinIME.java
+++ b/java/src/com/android/inputmethod/latin/LatinIME.java
@@ -1334,11 +1334,6 @@
                 switcher.toggleAlphabetAndSymbols();
             }
             break;
-        case Keyboard.CODE_CANCEL:
-            if (!isShowingOptionDialog()) {
-                handleClose();
-            }
-            break;
         case Keyboard.CODE_SETTINGS:
             onSettingsKeyPressed();
             break;