Remove sdk level check when calling getDataSaverEnabled

Follow-up from aosp/2856948, the data saver status value is
filled by ConnectivityService before Android V. Thus, calling
BpfNetMapsReader#getDataSaverEnabled() is a legit use case, which
should not trigger log.wtf.

Remove the check accordingly.

Test: TH
Bug: 314858283
Fix: 316839561
Change-Id: I90c85ab98fbefd1f99ec799a4eec8d1d0cfd47b0

framework/src/android/net/BpfNetMapsReader.java

@@ -36,7 +36,6 @@ import android.os.Build;
 import android.os.ServiceSpecificException;
 import android.system.ErrnoException;
 import android.system.Os;
-import android.util.Log;
 
 import com.android.internal.annotations.VisibleForTesting;
 import com.android.modules.utils.build.SdkLevel;
@@ -278,13 +277,6 @@ public class BpfNetMapsReader {
     public boolean getDataSaverEnabled() {
         throwIfPreT("getDataSaverEnabled is not available on pre-T devices");
 
-        // Note that this is not expected to be called until V given that it relies on the
-        // counterpart platform solution to set data saver status to bpf.
-        // See {@code NetworkManagementService#setDataSaverModeEnabled}.
-        if (!SdkLevel.isAtLeastV()) {
-            Log.wtf(TAG, "getDataSaverEnabled is not expected to be called on pre-V devices");
-        }
-
         try {
             return mDataSaverEnabledMap.getValue(DATA_SAVER_ENABLED_KEY).val == DATA_SAVER_ENABLED;
         } catch (ErrnoException e) {

tests/unit/java/android/net/BpfNetMapsReaderTest.kt

@@ -213,7 +213,6 @@ class BpfNetMapsReaderTest {
         assertFalse(isUidNetworkingBlocked(TEST_UID3))
     }
 
-    @IgnoreUpTo(VERSION_CODES.UPSIDE_DOWN_CAKE)
     @Test
     fun testGetDataSaverEnabled() {
         testDataSaverEnabledMap.updateEntry(DATA_SAVER_ENABLED_KEY, U8(DATA_SAVER_DISABLED))