Remove all deprecated modules

Author: habara-k

docs/source/index.rst

@@ -12,7 +12,6 @@ Contents:
    :maxdepth: 4
 
    linebot.v3
-   linebot
 
 
 Indices and tables

docs/source/linebot.models.rst

@@ -18,29 +18,3 @@
 from .__about__ import (  # noqa
     __version__
 )
-from .api import (  # noqa
-    LineBotApi,
-)
-from .async_api import (  # noqa
-    AsyncLineBotApi,
-)
-from .http_client import (  # noqa
-    HttpClient,
-    RequestsHttpClient,
-    HttpResponse,
-)
-from .async_http_client import (  # noqa
-    AsyncHttpClient,
-    AsyncHttpResponse,
-)
-from .webhook import (  # noqa
-    SignatureValidator,
-    WebhookParser,
-    WebhookHandler,
-    WebhookPayload,
-)
-
-from .deprecations import (
-    LineBotSdkDeprecationWarning,
-    LineBotSdkDeprecatedIn30,
-)