Remove unused InputMethod#setCurrentHideInputToken()

This is a clean up CL to our previous CL [1], which introduced an
unused @hide method

  InputMethod#setCurrentHideInputToken().

Since that method has never been called, there should be no behavior
change in this CL.

 [1]: Ia596a392eb73ae46debd097151c8c9a7edd59833
      44e2ae4afc30b6a873e1536e31619db258f6cf00

Bug: 133381284
Bug: 149870112
Bug: 192412909
Test: presubmit
Change-Id: I8906360dc51ad3468b9ce4c97d477ae9bcdb2e91

1 files changed, 0 insertions, 9 deletions

diff --git a/core/java/android/inputmethodservice/InputMethodService.java b/core/java/android/inputmethodservice/InputMethodService.java
index adf2759a8cd8..ca7f7495b277 100644
--- a/core/java/android/inputmethodservice/InputMethodService.java
+++ b/core/java/android/inputmethodservice/InputMethodService.java
@@ -998,15 +998,6 @@ public class InputMethodService extends AbstractInputMethodService {
         public void setCurrentShowInputToken(IBinder showInputToken) {
             mCurShowInputToken = showInputToken;
         }
-
-        /**
-         * {@inheritDoc}
-         * @hide
-         */
-        @Override
-        public void setCurrentHideInputToken(IBinder hideInputToken) {
-            mCurHideInputToken = hideInputToken;
-        }
     }
 
     /**