Android: Removed unused DEPS java exception rules

ChildProcessLauncherHelper is now in content_public. This CL
removes the exception rules not necessary any more. They should
have been in https://crrev.com/c/1072211 but were left out.

Bug: 617324
Change-Id: I4bfca26b4a94e30194d8f2327faa7eabb32dc8ba
Reviewed-on: https://chromium-review.googlesource.com/1097466Reviewed-by: Bo <boliu@chromium.org>
Reviewed-by: Maria Khomenko <mariakhomenko@chromium.org>
Commit-Queue: Jinsuk Kim <jinsukkim@chromium.org>
Cr-Commit-Position: refs/heads/master@{#566505}

android_webview/java/DEPS

@@ -10,7 +10,6 @@ include_rules = [
 
   "-content/public/android/java",
   "+content/public/android/java/src/org/chromium/content_public",
-  "!content/public/android/java/src/org/chromium/content/browser/ChildProcessLauncherHelper.java",
 
   "+device/gamepad/android/java",
   "+media/base/android/java",

chrome/android/java/DEPS

@@ -20,7 +20,6 @@ include_rules = [
 
   "-content/public/android",
   "+content/public/android/java/src/org/chromium/content_public",
-  "!content/public/android/java/src/org/chromium/content/browser/ChildProcessLauncherHelper.java",
 
   "+device/gamepad/android/java",
   "+device/geolocation/android/java",