[DO NOT MERGE] Deactivate H/W keyboard handling

For MR2, LatinIME should not be handling hardware keyboard
events. The feature is still work in progress.

Change-Id: I56ff18bff84ba6b5a6bc3f8829b42eaf33b72554

java/src/com/android/inputmethod/latin/define/ProductionFlag.java

@@ -29,5 +29,5 @@ public final class ProductionFlag {
     // for any released build.
     public static final boolean IS_EXPERIMENTAL_DEBUG = false;
 
-    public static final boolean IS_HARDWARE_KEYBOARD_SUPPORTED = true;
+    public static final boolean IS_HARDWARE_KEYBOARD_SUPPORTED = false;
 }