Revert of Make VR screen tap tests more stable

chrome/android/java/src/org/chromium/chrome/browser/vr_shell/VrShellDelegate.java

Index: chrome/android/java/src/org/chromium/chrome/browser/vr_shell/VrShellDelegate.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/vr_shell/VrShellDelegate.java b/chrome/android/java/src/org/chromium/chrome/browser/vr_shell/VrShellDelegate.java
index 0fb7baec2f5c99cccae6252b9018bcd4fdb19ec9..af104f87ea807d8484f72366883393b6cf7b2f52 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/vr_shell/VrShellDelegate.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/vr_shell/VrShellDelegate.java
@@ -791,14 +791,6 @@
     }
 
     /**
-     * @return The VrShell for the VrShellDelegate instance
-     */
-    @VisibleForTesting
-    public static VrShell getVrShellForTesting() {
-        return sInstance == null ? null : sInstance.mVrShell;
-    }
-
-    /**
      * @return Pointer to the native VrShellDelegate object.
      */
     @CalledByNative