poplar: remove sepolicy/proc_net.te

No longer needed after:
  https://android-review.googlesource.com/c/platform/system/sepolicy/+/1468206/
  public/file.te: add 'allow proc_net proc:filesystem associate'

Bug: 145579144
Bug: 170265025
Test: treehugger will
Signed-off-by: Maciej ┼╗enczykowski <maze@google.com>
Change-Id: Ia8f5876e1019f5ce88cbed60acdee7edf0475dee
diff --git a/sepolicy/proc_net.te b/sepolicy/proc_net.te
deleted file mode 100644
index 671a224..0000000
--- a/sepolicy/proc_net.te
+++ /dev/null
@@ -1 +0,0 @@
-allow proc_net proc:filesystem { associate };