[Android] Remove //chrome's IntentUtils.java

This file was deprecated by a copy added to //base in
https://chromium-review.googlesource.com/c/chromium/src/+/2071257, and
the internal callers of it have now been ported. I verified that no
commits have been made to the file since the above CL.

Bug: 1031465
Change-Id: Ib14e63a4d4030914227d682141681d6cf838e450
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2078534
Commit-Queue: Colin Blundell <blundell@chromium.org>
Reviewed-by: Yaron Friedman <yfriedman@chromium.org>
Cr-Commit-Position: refs/heads/master@{#745385}

chrome/browser/util/BUILD.gn

@@ -14,7 +14,6 @@ android_library("java") {
     "android/java/src/org/chromium/chrome/browser/util/ConversionUtils.java",
     "android/java/src/org/chromium/chrome/browser/util/FileSizeUtil.java",
     "android/java/src/org/chromium/chrome/browser/util/HashUtil.java",
-    "android/java/src/org/chromium/chrome/browser/util/IntentUtils.java",
     "android/java/src/org/chromium/chrome/browser/util/KeyNavigationUtil.java",
     "android/java/src/org/chromium/chrome/browser/util/PlatformUtil.java",
     "android/java/src/org/chromium/chrome/browser/util/UrlUtilities.java",