Revert "Add documentation for the counter component"

This reverts commit 1df450750d64ccbf1b612787496b8269e29c1880.

source/_components/counter.markdown

@@ -1,74 +0,0 @@
----
-layout: page
-title: "Counter"
-description: "Instructions how to integrate counters into Home Assistant."
-date: 2017-08-26 06:00
-sidebar: true
-comments: false
-sharing: true
-footer: true
-logo: home-assistant.png
-ha_category: Automation
-ha_release: 0.53
----
-
-The `counter` component allows one to count occurrences fired by automations.
-
-To add a counter to your installation, add the following to your `configuration.yaml` file:
-
-```yaml
-# Example configuration.yaml entry
-counter:
-  counter:
-    initial: 30
-    step: 1
-```
-
-Configuration variables:
-
-- **[alias]** (*Required*): Alias for the slider input. Multiple entries are allowed.
-  - **name** (*Optional*): Friendly name of the slider input.
-  - **initial** (*Optional*): Initial value when Home Assistant starts. Defaults to 0.
-  - **step** (*Optional*): Step value for the slider. Defaults to 1.
-  - **icon** (*Optional*): Icon for entry.
-
-## {% linkable_title Services %}
-
-### {% linkable_title Media control services %}
-Available services: `increment`, `decrement`, and `reset`.
-
-#### {% linkable_title Service `counter/increment` %}
-
-Increments the counter with 1 or the given value for the steps.
-
-| Service data attribute | Optional | Description |
-| ---------------------- | -------- | ----------- |
-| `entity_id`            |      no  | Name of entity to take the action, e.g. `counter.count0`. |
-
-#### {% linkable_title Service `counter/decrement` %}
-
-Decrements the counter with 1 or the given value for the steps.
-
-| Service data attribute | Optional | Description |
-| ---------------------- | -------- | ----------- |
-| `entity_id`            |      no  | Name of entity to take the action, e.g. `counter.count0`. |
-
-#### {% linkable_title Service `counter/reset` %}
-
-With this service the counter is reset to its initial value.
-
-| Service data attribute | Optional | Description |
-| ---------------------- | -------- | ----------- |
-| `entity_id`            |      no  | Name of entity to take the action, e.g. `counter.count0`. |
-
-
-### {% linkable_title Use the service %}
-
-Select <img src='/images/screenshots/developer-tool-services-icon.png' alt='service developer tool icon' class="no-shadow" height="38" /> **Services** from the **Developer Tools**. Choose **counter** from the list of **Domains**, select the **Service**, enter something like the sample below into the **Service Data** field, and hit **CALL SERVICE**.
-
-```json
-{
-  "entitiy": "counter.count0"
-}
-```
-