Diff libpac.so now that it is deterministic

Bug: 25348136
Change-Id: I008902299281b5ddd55a9b8c405d53eea2d56c8b
diff --git a/tools/releasetools/target_files_diff.py b/tools/releasetools/target_files_diff.py
index acb7448..2cf9051 100755
--- a/tools/releasetools/target_files_diff.py
+++ b/tools/releasetools/target_files_diff.py
@@ -51,11 +51,6 @@
               'RECOVERY/RAMDISK/selinux_version']:
     return True
 
-  # b/25348136 libpac.so changes with every build
-  if name in ['SYSTEM/lib/libpac.so',
-              'SYSTEM/lib64/libpac.so']:
-    return True
-
   return False