Revert "[CTT-7] Delete the rules while half-closing tcp state entered"

This reverts commit 118b5b578a15dbb82146ae5d14d67a2cc79340cd.

Reason for revert: 
Stop releasing this commit because it needs more test coverage.

Bug: 190783768
Bug: 192804833
Change-Id: Ie26f6e528999da42cfa66a5f6c1f187ad2276ae1
Test: atest TetheringCoverageTests
1 file changed