Removes `doPrivileged` remaining calls in the `javafx.web` module included in
{android,ios} code.
-------------
Commit messages:
- Remove calls to doPrivileged in javafx.web for android and ios
Changes: https://git.openjdk.org/jfx/pull/1651/files
Webrev: https://webrevs.openjdk.org/?repo=jfx&pr=1651&range=00
Issue: https://bugs.openjdk.org/browse/JDK-8342461
Stats: 110 lines in 7 files changed: 0 ins; 92 del; 18 mod
Patch: https://git.openjdk.org/jfx/pull/1651.diff
Fetch: git fetch https://git.openjdk.org/jfx.git pull/1651/head:pull/1651
PR: https://git.openjdk.org/jfx/pull/1651
