run-as: remove unecessary code.

We haven't had a symlink here for many years, so there's no reason to
allow one any more.

Test: treehugger
Change-Id: Ic10d547a88fc6d9c442a5dfb228c5914ea48a32d
diff --git a/run-as/run-as.cpp b/run-as/run-as.cpp
index 9ebe799..e7c6e04 100644
--- a/run-as/run-as.cpp
+++ b/run-as/run-as.cpp
@@ -76,9 +76,6 @@
     error(1, errno, "couldn't stat %s", path);
   }
 
-  // /data/user/0 is a known safe symlink.
-  if (strcmp("/data/user/0", path) == 0) return;
-
   // Must be a real directory, not a symlink.
   if (!S_ISDIR(st.st_mode)) {
     error(1, 0, "%s not a directory: %o", path, st.st_mode);