Revert "Linker namespace configuration for the Runtime APEX."

This reverts commit c1016fbd993748aec70423a654096312499b8aa0.

Reason for revert: Breaks CTS

Bug: 119867084
Bug: 113373927
Bug: 121149887
Change-Id: I310a341e0ea225bc9c98ba09d4452d9fbd4e49ad
diff --git a/build/apex/ld.config.txt b/build/apex/ld.config.txt
index fddb17e..ac4d1eb 100644
--- a/build/apex/ld.config.txt
+++ b/build/apex/ld.config.txt
@@ -1,24 +1 @@
-# Copyright (C) 2018 The Android Open Source Project
-#
-# Bionic loader config file for the Runtime APEX.
-#
-# There are no versioned APEX paths here - this APEX module does not support
-# having several versions mounted.
-
-dir.runtime = /apex/com.android.runtime/bin/
-
-[runtime]
-additional.namespaces = platform
-
-# Keep in sync with runtime namespace in /system/etc/ld.config.txt.
-namespace.default.isolated = true
-namespace.default.search.paths = /apex/com.android.runtime/${LIB}
-namespace.default.links = platform
-# TODO(b/119867084): Restrict fallback to platform namespace to PALette library.
-namespace.default.link.platform.allow_all_shared_libs = true
-
-# Keep in sync with default namespace in /system/etc/ld.config.txt.
-namespace.platform.isolated = true
-namespace.platform.search.paths = /system/${LIB}
-namespace.platform.links = default
-namespace.platform.link.default.shared_libs = libc.so:libdl.so:libm.so
+# TODO: Write me.