Remove unused method removeAllQosPoliciesForScs am: dae46c94fa

Original change: https://googleplex-android-review.googlesource.com/c/platform/external/wpa_supplicant_8/+/21938779

Change-Id: I6a019e951dff62de9dbc761f27be1414cf1704fc
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>