Refactor all tests inheriting from WifiBaseTest as per b/137199892

Bug: 137199892
Test: manual
Change-Id: Ie6dbace7bfbd66aa02041a69d9421b0b012c60f4
diff --git a/acts/tests/google/wifi/WifiNetworkSuggestionTest.py b/acts/tests/google/wifi/WifiNetworkSuggestionTest.py
old mode 100755
new mode 100644
index 21f04ed..885a31d
--- a/acts/tests/google/wifi/WifiNetworkSuggestionTest.py
+++ b/acts/tests/google/wifi/WifiNetworkSuggestionTest.py
@@ -51,10 +51,9 @@
       network.
     """
 
-    def __init__(self, controllers):
-        WifiBaseTest.__init__(self, controllers)
-
     def setup_class(self):
+        super().setup_class()
+
         self.dut = self.android_devices[0]
         wutils.wifi_test_device_init(self.dut)
         req_params = []