apt - remove obsolete documentation (#76243)

The lock_timeout feature was recently added to the apt module making
this section in the documentation no longer necessary

lib/ansible/modules/apt.py

@@ -170,7 +170,7 @@ options:
     version_added: "2.4"
   lock_timeout:
     description:
-      - How many seconds will this action wait to aquire a lock on the apt db.
+      - How many seconds will this action wait to acquire a lock on the apt db.
       - Sometimes there is a transitory lock and this will retry at least until timeout is hit.
     type: int
     default: 60
@@ -298,18 +298,6 @@ EXAMPLES = '''
 - name: Remove dependencies that are no longer required
   apt:
     autoremove: yes
-
-# Sometimes apt tasks fail because apt is locked by an autoupdate or by a race condition on a thread.
-# To check for a lock file before executing, and keep trying until the lock file is released:
-- name: Install packages only when the apt process is not locked
-  apt:
-    name: foo
-    state: present
-  register: apt_action
-  retries: 100
-  until: apt_action is success or ('Failed to lock apt for exclusive operation' not in apt_action.msg and '/var/lib/dpkg/lock' not in apt_action.msg)
-
-
 '''
 
 RETURN = '''