Remove workaround for arm subdirectories.

They no longer appear in APEXes, flattened or not.

This reverts https://r.android.com/1114092.

Test: art/build/apex/runtests.sh on aosp_x86_arm-userdebug,
  with and without OVERRIDE_TARGET_FLATTEN_APEX=true
Bug: 139046641
Change-Id: I692f9e991e321e73aaed1e1cce4038904d69d53d
diff --git a/build/apex/art_apex_test.py b/build/apex/art_apex_test.py
index ea18a46..4d1614b 100755
--- a/build/apex/art_apex_test.py
+++ b/build/apex/art_apex_test.py
@@ -627,12 +627,6 @@
     self._checker.check_native_library('libcrypto')
     self._checker.check_native_library('libexpat')
 
-    # TODO(b/139046641): Fix proper 2nd arch checks. For now, just ignore these
-    # directories.
-    self._checker.ignore_path('bin/arm')
-    self._checker.ignore_path('lib/arm')
-    self._checker.ignore_path('lib64/arm')
-
 
 class ReleaseHostChecker:
   def __init__(self, checker):