Remove obsolate code

platformio/run/cli.py

@@ -123,8 +123,6 @@ def cli(
                         fg="yellow",
                     )
 
-            handle_legacy_libdeps(project_dir, config)
-
             default_envs = config.default_envs()
             results = []
             for env in config.envs():

platformio/run/helpers.py

@@ -15,33 +15,10 @@
 from os import makedirs
 from os.path import isdir, isfile, join
 
-import click
-
 from platformio import fs
 from platformio.project.helpers import compute_project_checksum, get_project_dir
 
 
-def handle_legacy_libdeps(project_dir, config):
-    legacy_libdeps_dir = join(project_dir, ".piolibdeps")
-    if not isdir(legacy_libdeps_dir) or legacy_libdeps_dir == config.get(
-        "platformio", "libdeps_dir"
-    ):
-        return
-    if not config.has_section("env"):
-        config.add_section("env")
-    lib_extra_dirs = config.get("env", "lib_extra_dirs", [])
-    lib_extra_dirs.append(legacy_libdeps_dir)
-    config.set("env", "lib_extra_dirs", lib_extra_dirs)
-    click.secho(
-        "DEPRECATED! A legacy library storage `{0}` has been found in a "
-        "project. \nPlease declare project dependencies in `platformio.ini`"
-        " file using `lib_deps` option and remove `{0}` folder."
-        "\nMore details -> https://docs.platformio.org/page/projectconf/"
-        "section_env_library.html#lib-deps".format(legacy_libdeps_dir),
-        fg="yellow",
-    )
-
-
 def clean_build_dir(build_dir, config):
     # remove legacy ".pioenvs" folder
     legacy_build_dir = join(get_project_dir(), ".pioenvs")