No longer adjust the linker configuration file in ART chroot environments.

The linker configuration file adjustment logic is no longer needed in
Android R builds, now that `/linkerconfig/ld.config.txt` is:
1. always generated by `/system/bin/linkerconfig`;
2. always being picked up by Bionic's linker before alternatives
   linker configuration files.

Test: Run ART tests in a chroot environment on an Android R "host device"
Test: Run ART tests in a chroot environment on an Android Q "host device"
Bug: 34729697
Bug: 147737840
Bug: 148171362
Change-Id: Ic9142a4ce0f9b7098fbcf336494369166ae4c935
1 file changed