hookspec: remove explicit `:param` types

Duplicates info in the type annotations which sphinx understands.

src/_pytest/hookspec.py

@@ -54,7 +54,7 @@ def pytest_addhooks(pluginmanager: "PytestPluginManager") -> None:
     """Called at plugin registration time to allow adding new hooks via a call to
     :func:`pluginmanager.add_hookspecs(module_or_class, prefix) <pytest.PytestPluginManager.add_hookspecs>`.
 
-    :param pytest.PytestPluginManager pluginmanager: The pytest plugin manager.
+    :param pluginmanager: The pytest plugin manager.
 
     .. note::
         This hook is incompatible with hook wrappers.
@@ -68,7 +68,7 @@ def pytest_plugin_registered(
     """A new pytest plugin got registered.
 
     :param plugin: The plugin module or instance.
-    :param pytest.PytestPluginManager manager: pytest plugin manager.
+    :param manager: pytest plugin manager.
 
     .. note::
         This hook is incompatible with hook wrappers.
@@ -86,13 +86,13 @@ def pytest_addoption(parser: "Parser", pluginmanager: "PytestPluginManager") ->
         files situated at the tests root directory due to how pytest
         :ref:`discovers plugins during startup <pluginorder>`.
 
-    :param pytest.Parser parser:
+    :param parser:
         To add command line options, call
         :py:func:`parser.addoption(...) <pytest.Parser.addoption>`.
         To add ini-file values call :py:func:`parser.addini(...)
         <pytest.Parser.addini>`.
 
-    :param pytest.PytestPluginManager pluginmanager:
+    :param pluginmanager:
         The pytest plugin manager, which can be used to install :py:func:`~pytest.hookspec`'s
         or :py:func:`~pytest.hookimpl`'s and allow one plugin to call another plugin's hooks
         to change how command line options are added.
@@ -127,7 +127,7 @@ def pytest_configure(config: "Config") -> None:
     .. note::
         This hook is incompatible with hook wrappers.
 
-    :param pytest.Config config: The pytest config object.
+    :param config: The pytest config object.
     """
 
 
@@ -435,7 +435,7 @@ def pytest_make_parametrize_id(
 
     :param config: The pytest config object.
     :param val: The parametrized value.
-    :param str argname: The automatic parameter name produced by pytest.
+    :param argname: The automatic parameter name produced by pytest.
     """