Revert^2 "Delegate adservices shell command from sdksandbox to adservices manager."

This reverts commit 8f51602756dad54d1d750d9a199cba1c2f3f3841.

Test: atest SdkSandboxManagerServiceUnitTest, SdkSandboxShellCommandUnitTest

Test: adb shell device_config put adservices adservices_shell_command_enabled true && adb shell cmd adservices_manager
      adb shell cmd sdk_sandbox adservices echo hello

Bug: 322822651
Bug: 308009734

Reason for revert: Test was failing when it was creating dup filedescriptor. This seems like a temporary error. The code seems to work in Prod. Will mark the test as flaky to view if the test was failing was conincidence.

Change-Id: Ie8c59530722762e9019ae8c568da7b41bf94677d
5 files changed