Cleaned-up unused session argument.

Change-Id: Iff9d0df5f1643c581767a41a1ba4b1d43e5b45d8
diff --git a/services/core/java/com/android/server/wm/InputMonitor.java b/services/core/java/com/android/server/wm/InputMonitor.java
index bb53534..c24fcb3 100644
--- a/services/core/java/com/android/server/wm/InputMonitor.java
+++ b/services/core/java/com/android/server/wm/InputMonitor.java
@@ -78,7 +78,7 @@
             WindowState windowState = (WindowState) inputWindowHandle.windowState;
             if (windowState != null) {
                 Slog.i(WindowManagerService.TAG, "WINDOW DIED " + windowState);
-                mService.removeWindowLocked(windowState.mSession, windowState);
+                mService.removeWindowLocked(windowState);
             }
         }
     }