* Rename the APK package name to reflect that it is from Chromium build.
* Rename the application to reflect it is no longer used on Android system image.
* Remove code supporting multiple APKs, since we only have one now.
* Remove the placeholder icon, which is no longer needed.
* Remove the ANGLE_FOR_ANDROID intent, since this APK is not built in.
* Remove the java code since since it was only in support of the intent.
* Remove most apps from the rules file.

Bug: angleproject:3396
Change-Id: Ic6a2fd03e5686026ab4650fc0c25adb298af03c2
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1579389Reviewed-by: Tim Van Patten <timvp@google.com>
Reviewed-by: Yuly Novikov <ynovikov@chromium.org>
Commit-Queue: Cody Northrop <cnorthrop@google.com>