Remove remaining experimental/io shims and forwarding headers

Summary:
Removed shim targets (11): async_base, async_io, liburing, async_io_uring_socket, simple_async_io, epoll, epoll_backend, event_base_poller, mux_io_thread_pool_executor, fs_util, huge_pages.

Removed test shim targets (3): io_test_temp_file_util_lib, async_base_test_lib, mux_io_thread_pool_executor_test_lib.

Also removes the now-unnecessary bad_targets entries.

Reviewed By: spikeh

Differential Revision: D93254838

fbshipit-source-id: 526456a9dfa53379971601ab3f70bdf7acd74b25

Author: jlhe97

third-party/folly/src/.github/scripts/bad_targets

@@ -37,8 +37,6 @@ root//folly/docs/examples/folly/coro:task_demo
 root//folly/docs/examples/folly/coro:with_cancellation_demo
 root//folly/docs/examples/folly/hash:hash_demo
 root//folly/docs/examples/folly/io:i_o_buf_demo
-root//folly/experimental/io:async_io
-root//folly/experimental/io:simple_async_io
 root//folly/logging/example:example
 root//folly/python:executor_lib
 root//folly/python:fibers_lib

third-party/folly/src/folly/experimental/CMakeLists.txt

@@ -51,7 +51,6 @@ add_subdirectory(coro)
 add_subdirectory(crypto)
 add_subdirectory(exception_tracer)
 add_subdirectory(flat_combining)
-add_subdirectory(io)
 add_subdirectory(observer)
 add_subdirectory(settings)
 add_subdirectory(symbolizer)