Remove dead code from ShareMenuActionHandler refactor.

Clean up of stuff I missed from:
https://chromium-review.googlesource.com/c/chromium/src/+/762036

BUG=780139

Change-Id: Icc79f75e49dd9c8e2327ffee22e53cafe81bec41
Reviewed-on: https://chromium-review.googlesource.com/773503Reviewed-by: Wei-Yin Chen (陳威尹) <wychen@chromium.org>
Commit-Queue: Ted Choc <tedchoc@chromium.org>
Cr-Commit-Position: refs/heads/master@{#517155}

chrome/android/java/src/org/chromium/chrome/browser/ChromeActivity.java

@@ -275,9 +275,6 @@ public abstract class ChromeActivity extends AsyncInitializationActivity
     // See enableHardwareAcceleration()
     private boolean mSetWindowHWA;
 
-    // Skips capturing screenshot for testing purpose.
-    private boolean mScreenshotCaptureSkippedForTesting;
-
     /** Whether or not a PolicyChangeListener was added. */
     private boolean mDidAddPolicyChangeListener;
 
@@ -1260,11 +1257,6 @@ public abstract class ChromeActivity extends AsyncInitializationActivity
         return super.onOptionsItemSelected(item);
     }
 
-    @VisibleForTesting
-    public void setScreenshotCaptureSkippedForTesting(boolean value) {
-        mScreenshotCaptureSkippedForTesting = value;
-    }
-
     /**
      * Triggered when the share menu item is selected.
      * This creates and shows a share intent picker dialog or starts a share intent directly.