[RTT] Remove testAvailabilityStatusChange because of lack of triggering API

The availability status change test performs the following:
- Disable RTT
- Verifies broadcast informing of RTT status change arrives (and then
  validates disabled)
- Enable RTT
- Verifies broadcast informing of RTT status change arrives (and then
  validates enabled)

However: there is no API available to CTS (to apps) to disable RTT in
a robust way:
- No APM control API
- Disabling Wi-Fi is possible but that only disables RTT if scans are
  also disabled and there is no API for that and the rest of the tests
  requires scans to be on (higher priority tests).

Bug: 74518964
Test: atest CtsNetTestCases:WifiRttTest
Change-Id: Ieaeca065661cebae1921933fad56f82dd6f30c2f

tests/cts/net/src/android/net/wifi/rtt/cts/WifiRttTest.java

@@ -147,36 +147,6 @@ public class WifiRttTest extends TestBase {
         }
     }
 
-    /**
-     * Validate that on Wi-Fi RTT availability change we get a broadcast + the API returns
-     * correct status.
-     */
-    public void testAvailabilityStatusChange() throws Exception {
-        if (!shouldTestWifiRtt(getContext())) {
-            return;
-        }
-
-        // 1. Disable Wi-Fi
-        WifiRttBroadcastReceiver receiver1 = new WifiRttBroadcastReceiver();
-        mContext.registerReceiver(receiver1, mRttIntent);
-        mWifiManager.setWifiEnabled(false);
-
-        assertTrue("Timeout waiting for Wi-Fi RTT to change status",
-                receiver1.waitForStateChange());
-        assertFalse("Wi-Fi RTT is available (should not be)", mWifiRttManager.isAvailable());
-        mContext.unregisterReceiver(receiver1);
-
-        // 2. Enable Wi-Fi
-        WifiRttBroadcastReceiver receiver2 = new WifiRttBroadcastReceiver();
-        mContext.registerReceiver(receiver2, mRttIntent);
-        mWifiManager.setWifiEnabled(true);
-
-        assertTrue("Timeout waiting for Wi-Fi RTT to change status",
-                receiver2.waitForStateChange());
-        assertTrue("Wi-Fi RTT is not available (should be)", mWifiRttManager.isAvailable());
-        mContext.unregisterReceiver(receiver2);
-    }
-
     /**
      * Validate that when a request contains more range operations than allowed (by API) that we
      * get an exception.