aidl: Remove unused makefile

Change-Id: I19514a76be9d0f415cbbdca289a47324c765dc61

aidl/Android.mk

@@ -1,17 +0,0 @@
-#
-# Copyright (C) 2019 The LineageOS Project
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-#
-
-include $(call all-subdir-makefiles)