Make Android patch docs in ojluni more consistent with style guide

This CL consists of an automated and a manual part (originally
reviewed as separate CLs, then squashed together before submitting
in order to minimize the number of times each Android-changed line
is touch, since that makes future git archaeology on these simpler).

Automated part: Run the following command (performs regex replacements):

find ojluni -name \*\.java | xargs sed -i \
 -e 's/Android[- ]changed/Android-changed/ig' \
 -e 's/Android-changed :/Android-changed:/g' \
 -e 's/Android-changed \(BEGIN\|END\)/\1 Android-changed/g' \
 -e 's/Android-changed - /Android-changed: /g' \
 -e 's/Android[- ]removed/Android-removed/ig' \
 -e 's/Android-removed :/Android-removed:/g' \
 -e 's/Android-removed \(BEGIN\|END\)/\1 Android-removed/g' \
 -e 's/Android-removed - /Android-removed: /g' \
 -e 's/Android[- ]added/Android-added/ig' \
 -e 's/Android-added :/Android-added:/g' \
 -e 's/Android-added \(BEGIN\|END\)/\1 Android-added/g' \
 -e 's/Android-added - /Android-added: /g' \
 -e 's/----- \(BEGIN\|END\) android\( -----\)\?/\1 Android-changed/g' \
 -e 's/\/\* \(BEGIN\|END\) Android-changed \*\//\/\/ \1 Android-changed/g'

Manual part: Move BEGIN Android-* lines out of block comments

Some Android-{changed,removed,added} lines occurred inside block comments.
This CL targets places in ojluni that contained the String "* BEGIN Android-"

Changes made by this CL include:

 - Move the "BEGIN Android-" line into a line comment (the style guide
   mandates that "Android-" lines are always in line comments). In many
   cases, that line comment is immediately followed by a block comment
   holding commented-out upstream code.
 - Add corresponding "// END Android-" line comments, where missing.
 - Drop documented import changes altogether. These create noise for
   little benefit:
   (1.) Most import problems will be found at compile time
   (2.) They generally correspond to documented changes elsewhere in
        the file.
 - In most cases, the phrasing of comments and the decision whether to
   keep commented out upstream code was not changed by this CL.
 - Some additional tweaks were made in line with the style guide.

No attempt was made to:

 - Verify that commented-out upstream code actually matches the
   current upstream.
 - Make any fixes (eg. to comments) that would have required
   git archaeology (looking up historic commits).

Bug: 35841464
Test: make droid cts update-api

Change-Id: Ibc60979cb6061cfb0e9c7096cc9dcab30ddfa733
148 files changed