Remove ClatdController relevant stubs

Since the clatd control plane has been moved to mainline
ClatCoordinator, netd/ClatdController is not required anymore.

1. Delete ClatdController files
ClatdController.cpp
ClatdController.h
ClatdControllerTest.cpp

2. Deprecate clatd binder calls
NetdNativeService::clatdStart
NetdNativeService::clatdStop

New tests (some of them use java mock test) partial cover removed
tests. We are going to have a clat integration test to cover more
native behavior.

Test changes:
ClatdControllerTest::SelectIpv4Address -> ClatUtils::SelectIpv4Address
ClatdControllerTest::MakeChecksumNeutral -> ClatUtils::MakeChecksumNeutral
ClatdControllerTest::DetectMtu -> ClatUtils::DetectMtu
ClatdControllerTest::ConfigureTunIpManual
-> ClatCoordinatorTest::testStartStopClatd (only mock test)
ClatdControllerTest::ConfigureIpv6Address
-> ClatCoordinatorTest::testStartStopClatd (only mock test),
   ClatUtils::ConfigurePacketSocket

New test path:
packages/modules/Connectivity/service/native/libs/libclat/clatutils_test.cpp
packages/modules/Connectivity/tests/unit/java/com/android/server/connectivity/ClatCoordinatorTest.java

Bug: 212345928
Bug: 215655463
Test: cd system/netd; atest

Original change: https://android-review.googlesource.com/c/platform/system/netd/+/2072829

Merged-In: Ie2c341f943f9f383f42d6333abb594997085e7a1
Change-Id: Ie2c341f943f9f383f42d6333abb594997085e7a1
Signed-off-by: Nucca Chen <nuccachen@google.com>
(cherry picked from commit bbdea2d15cf8e1f6ce3ff44d2b3459930be5c313)

0 files changed, 0 insertions, 0 deletions