Remove unwanted hidden APIs

Bug: 69424325
Test: compile, run ./frameworks/base/wifi/tests/runtests.sh
Change-Id: If5e0c695655bd75f5aea16a339696fcebd9c5601

wifi/java/android/net/wifi/IWifiManager.aidl

@@ -163,12 +163,6 @@ interface IWifiManager
     void enableAggressiveHandover(int enabled);
     int getAggressiveHandover();
 
-    void setAllowScansWithTraffic(int enabled);
-    int getAllowScansWithTraffic();
-
-    boolean setEnableAutoJoinWhenAssociated(boolean enabled);
-    boolean getEnableAutoJoinWhenAssociated();
-
     void enableWifiConnectivityManager(boolean enabled);
 
     WifiConnectionStatistics getConnectionStatistics();

wifi/java/android/net/wifi/WifiManager.java

@@ -3486,27 +3486,23 @@ public class WifiManager {
     }
 
     /**
-     * Set setting for allowing Scans when traffic is ongoing.
+     * Deprecated
+     * Does nothing
      * @hide
+     * @deprecated
      */
     public void setAllowScansWithTraffic(int enabled) {
-        try {
-            mService.setAllowScansWithTraffic(enabled);
-        } catch (RemoteException e) {
-            throw e.rethrowFromSystemServer();
-        }
+        return;
     }
 
     /**
-     * Get setting for allowing Scans when traffic is ongoing.
+     * Deprecated
+     * returns value for 'disabled'
      * @hide
+     * @deprecated
      */
     public int getAllowScansWithTraffic() {
-        try {
-            return mService.getAllowScansWithTraffic();
-        } catch (RemoteException e) {
-            throw e.rethrowFromSystemServer();
-        }
+        return 0;
     }
 
     /**
@@ -3536,29 +3532,23 @@ public class WifiManager {
     }
 
     /**
-     * Framework layer autojoin enable/disable when device is associated
-     * this will enable/disable autojoin scan and switch network when connected
-     * @return true -- if set successful false -- if set failed
+     * Deprecated
+     * returns false
      * @hide
+     * @deprecated
      */
     public boolean setEnableAutoJoinWhenAssociated(boolean enabled) {
-        try {
-            return mService.setEnableAutoJoinWhenAssociated(enabled);
-        } catch (RemoteException e) {
-            throw e.rethrowFromSystemServer();
-        }
+        return false;
     }
 
     /**
-     * Get setting for Framework layer autojoin enable status
+     * Deprecated
+     * returns false
      * @hide
+     * @deprecated
      */
     public boolean getEnableAutoJoinWhenAssociated() {
-        try {
-            return mService.getEnableAutoJoinWhenAssociated();
-        } catch (RemoteException e) {
-            throw e.rethrowFromSystemServer();
-        }
+        return false;
     }
 
     /**