Remove the linker parameter from ChildProcessConnection.

Removing a library loader linker specific parameter from the Android
ChildProcessConnection class to make it more generic (it was always
set to the same value).
This is part of the effort to move Android child process creation to
base/.

BUG=702316

Review-Url: https://codereview.chromium.org/2762773002
Cr-Commit-Position: refs/heads/master@{#458267}
4 files changed