Remove deprecated features and plugins for 11.0.0 (#10126)

* Bump version to 11.0.0.

* Removed deprecated plugins/modules.

* Remove _init_session().

* Remove ack_venv_creation_deprecation.

* Change behavior of state.

* Remove value reading.

* Remove list_all.

* Remove various deprecated module helper things.

* Change default of proxmox's update parameter.

* Fix constructor command order.

Co-authored-by: Alexei Znamensky <103110+russoz@users.noreply.github.com>

* MH: adjust guide

---------

Co-authored-by: Alexei Znamensky <103110+russoz@users.noreply.github.com>
Co-authored-by: Alexei Znamensky <russoz@gmail.com>

tests/integration/targets/module_helper/library/mdepfail.py

@@ -57,7 +57,7 @@ class MSimple(ModuleHelper):
             raise Exception("a >= 100")
         if self.vars.c == "abc change":
             self.vars['abc'] = "changed abc"
-        if self.vars.get('a', 0) == 2:
+        if self.vars.a == 2:
             self.vars['b'] = str(self.vars.b) * 2
             self.vars['c'] = str(self.vars.c) * 2
 

tests/integration/targets/module_helper/library/msimple.py

@@ -63,7 +63,7 @@ class MSimple(ModuleHelper):
             raise Exception("a >= 100")
         if self.vars.c == "abc change":
             self.vars['abc'] = "changed abc"
-        if self.vars.get('a', 0) == 2:
+        if self.vars.a == 2:
             self.vars['b'] = str(self.vars.b) * 2
             self.vars['c'] = str(self.vars.c) * 2
         self.process_a3_bc()

tests/integration/targets/module_helper/library/mstate.py

@@ -49,7 +49,6 @@ class MState(StateModuleHelper):
             state=dict(type='str', choices=['join', 'b_x_a', 'c_x_a', 'both_x_a', 'nop'], default='join'),
         ),
     )
-    use_old_vardict = False
 
     def __init_module__(self):
         self.vars.set('result', "abc", diff=True)