drop duplicated func _module_available

pytorch_lightning/utilities/package_utils.py

@@ -1,36 +0,0 @@
-# Copyright The PyTorch Lightning team.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-import importlib
-
-
-def _module_available(module_path: str) -> bool:
-    """Testing if given module is avalaible in your env
-
-    >>> _module_available('os')
-    True
-    >>> _module_available('bla.bla')
-    False
-    """
-    # todo: find a better way than try / except
-    try:
-        mods = module_path.split('.')
-        assert mods, 'nothing given to test'
-        # it has to be tested as per partets
-        for i in range(len(mods)):
-            module_path = '.'.join(mods[:i + 1])
-            if importlib.util.find_spec(module_path) is None:
-                return False
-        return True
-    except AttributeError:
-        return False