removing references to CloudLogger in the docs (#557)

Co-authored-by: Haifeng Jin <haifeng-jin@users.noreply.github.com>

keras_tuner/engine/base_tuner.py

@@ -47,8 +47,8 @@ class BaseTuner(stateful.Stateful):
  directory: A string, the relative path to the working directory.
  project_name: A string, the name to use as prefix for files saved by
  this Tuner.
- logger: Optional instance of `Logger` class, used for streaming data to
- Cloud Service for monitoring.
+ logger: Optional instance of `kerastuner.Logger` class for
+ streaming logs for monitoring.
  overwrite: Boolean, defaults to `False`. If `False`, reloads an
  existing project of the same name if one is found. Otherwise,
  overwrites the project.

keras_tuner/engine/tuner.py

@@ -60,8 +60,8 @@ class Tuner(base_tuner.BaseTuner):
  directory: A string, the relative path to the working directory.
  project_name: A string, the name to use as prefix for files saved by
  this `Tuner`.
- logger: Optional instance of `Logger` class, used for streaming data to
- Cloud Service for monitoring.
+ logger: Optional instance of `kerastuner.Logger` class for
+ streaming logs for monitoring.
  tuner_id: Optional string, used as the ID of this `Tuner`.
  overwrite: Boolean, defaults to `False`. If `False`, reloads an
  existing project of the same name if one is found. Otherwise,