Remove some stale info from Z-Wave (#3551)

source/_docs/z-wave.markdown

@@ -18,8 +18,6 @@ Before configuring the Z-Wave setup, please take a moment and read [this article
 
 ### {% linkable_title Installation %}
 
-As of version 0.45, Home Assistant automatically installs python-openzwave from PyPI as needed.
-
 There is one dependency you will need to have installed ahead of time (included in `systemd-devel` on Fedora/RHEL systems):
 
 ```bash
@@ -41,7 +39,7 @@ Configuration variables:
 - **config_path** (*Optional*): The path to the Python OpenZWave configuration files. Defaults to the 'config' that is installed by python-openzwave
 - **autoheal** (*Optional*): Allows disabling auto Z-Wave heal at midnight. Defaults to True.
 - **polling_interval** (*Optional*): The time period in milliseconds between polls of a nodes value. Be careful about using polling values below 30000 (30 seconds) as polling can flood the zwave network and cause problems.
-- **device_config** (*Optional*): This attribute contains node-specific override values. (For releases prior to 0.39 this variable is called **customize**) See [Customizing devices and services](https://home-assistant.io/getting-started/customizing-devices/) for format:
+- **device_config** (*Optional*): This attribute contains node-specific override values:
   - **polling_intensity** (*Optional*): Enables polling of a value and sets the frequency of polling (0=none, 1=every time through the list, 2=every other time, etc). If not specified then your device will not be polled.
   - **ignored** (*Optional*): Ignore this entity completely. It won't be shown in the Web Interface and no events are generated for it.
   - **refresh_value** (*Optional*): Enable refreshing of the node value. Only the light component uses this. Defaults to False.