Remove unsupported event from accessibilityinfo.md

The event name 'accessibilityServiceChanged' is not present in react-native/Libraries/Components/AccessibilityInfo/AccessibilityInfo.d.ts It's not supported, therefore the info is misleading

Author: rumeysabulut

website/versioned_docs/version-0.75/accessibilityinfo.md

@@ -89,7 +89,6 @@ Add an event handler. Supported events:
 
 | Event name                                                                           | Description                                                                                                                                                                                                                                                                                              |
 | ------------------------------------------------------------------------------------ | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
-| `accessibilityServiceChanged`<br/><div class="label two-lines android">Android</div> | Fires when some services such as TalkBack, other Android assistive technologies, and third-party accessibility services are enabled. The argument to the event handler is a boolean. The boolean is `true` when a some accessibility services is enabled and `false` otherwise.                          |
 | `announcementFinished`<br/><div class="label two-lines ios">iOS</div>                | Fires when the screen reader has finished making an announcement. The argument to the event handler is a dictionary with these keys:<ul><li>`announcement`: The string announced by the screen reader.</li><li>`success`: A boolean indicating whether the announcement was successfully made.</li></ul> |
 | `boldTextChanged`<br/><div class="label two-lines ios">iOS</div>                     | Fires when the state of the bold text toggle changes. The argument to the event handler is a boolean. The boolean is `true` when bold text is enabled and `false` otherwise.                                                                                                                             |
 | `grayscaleChanged`<br/><div class="label two-lines ios">iOS</div>                    | Fires when the state of the gray scale toggle changes. The argument to the event handler is a boolean. The boolean is `true` when a gray scale is enabled and `false` otherwise.                                                                                                                         |