Revert "Add the selinux policy version number."

This reverts commit b77b3aff2e19fb4d5a329f962fcf467fc7bbeb1a.
diff --git a/sepolicy.version b/sepolicy.version
deleted file mode 100644
index 45a4fb7..0000000
--- a/sepolicy.version
+++ /dev/null
@@ -1 +0,0 @@
-8