This change removes an unused parameter that is always null in getNetworkStatsUidDetail Bug: 113122541 Bug: 134244752 Test: FrameworksNetTest passing Merged-In: I995b108ef30e1fbd6190131ed4db40a3d9327eb5 Change-Id: I575a7e4fa145f2c93537f33a2bfe952aeafd0e69 (cherry picked from commit 5823e8d3c69b10ad2a458e491c146631457ca86d)