Revert "Filter ANDROID_PROPERTY_WORKSPACE"

Temporarily revert the change since DNS resolution seems
broken right now in ping util.

Bug: 8029617

This reverts commit a0f64756a4a55ab48b2b5511d4e7c45583dac44b.
diff --git a/linker/linker_environ.cpp b/linker/linker_environ.cpp
index 16f017e..8ae5a9d 100644
--- a/linker/linker_environ.cpp
+++ b/linker/linker_environ.cpp
@@ -112,7 +112,6 @@
 static bool __is_unsafe_environment_variable(const char* name) {
   // None of these should be allowed in setuid programs.
   static const char* const UNSAFE_VARIABLE_NAMES[] = {
-      "ANDROID_PROPERTY_WORKSPACE",
       "GCONV_PATH",
       "GETCONF_DIR",
       "HOSTALIASES",