Remove attenuator-relevant codes since `WifiBaseTest` already handles this and it will set attenuation level to 0 if attenuator(s) are available. am: 6ff502c5e2

Original change: https://android-review.googlesource.com/c/platform/tools/test/connectivity/+/3238960

Change-Id: I1a63c2d9d25e5cd496252fbf6ff1cc8cd70c14df
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
diff --git a/acts_tests/tests/google/wifi/WifiPreTest.py b/acts_tests/tests/google/wifi/WifiPreTest.py
index ebc1567..cc47078 100644
--- a/acts_tests/tests/google/wifi/WifiPreTest.py
+++ b/acts_tests/tests/google/wifi/WifiPreTest.py
@@ -28,7 +28,6 @@
 
 _POLL_AP_RETRY_INTERVAL_SEC = 1
 _WAIT_OPENWRT_AP_BOOT_SEC = 30
-_NO_ATTENUATION = 0
 
 class WifiPreTest(WifiBaseTest):
   """ Wi-Fi PreTest."""
@@ -39,7 +38,7 @@
   def setup_class(self):
     super().setup_class()
 
-    req_params = ["Attenuator", "OpenWrtAP"]
+    req_params = ["OpenWrtAP"]
     self.unpack_userparams(req_param_names=req_params)
 
     self.dut = self.android_devices[0]
@@ -59,11 +58,6 @@
         raise signals.TestFailure(
           f"Unable to connect to OpenWrt AP: {openwrt.ssh_settings.hostname}")
 
-    # Set all attenuators to 0 dB.
-    for i, attenuator in enumerate(self.attenuators):
-      attenuator.set_atten(_NO_ATTENUATION)
-      logging.info(f"Attenuator {i} set to {_NO_ATTENUATION} dB")
-
     self.start_openwrt()
 
     wutils.list_scan_results(self.dut, wait_time=30)