diff --git a/python-packages/Android.bp b/python-packages/Android.bp
deleted file mode 100644
index db7d98c..0000000
--- a/python-packages/Android.bp
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (C) 2017 The Android Open Source 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.
-
-python_library_host {
-  name: "adb_py",
-  srcs: [
-    "adb/*.py",
-  ],
-  version: {
-    py2: {
-      enabled: true,
-    },
-    py3: {
-      enabled: false,
-    },
-  },
-}
diff --git a/sources/cxx-stl/llvm-libc++abi/Android.bp b/sources/cxx-stl/llvm-libc++abi/Android.bp
deleted file mode 100644
index d9e8617..0000000
--- a/sources/cxx-stl/llvm-libc++abi/Android.bp
+++ /dev/null
@@ -1,91 +0,0 @@
-//
-// Copyright (C) 2014 The Android Open Source 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.
-//
-
-cc_library_static {
-    name: "libc++abi",
-    host_supported: true,
-    clang: true,
-    srcs: [
-        "src/abort_message.cpp",
-        "src/cxa_aux_runtime.cpp",
-        "src/cxa_default_handlers.cpp",
-        "src/cxa_demangle.cpp",
-        "src/cxa_exception.cpp",
-        "src/cxa_exception_storage.cpp",
-        "src/cxa_guard.cpp",
-        "src/cxa_handlers.cpp",
-        "src/cxa_new_delete.cpp",
-        "src/cxa_personality.cpp",
-        "src/cxa_thread_atexit.cpp",
-        "src/cxa_unexpected.cpp",
-        "src/cxa_vector.cpp",
-        "src/cxa_virtual.cpp",
-        "src/exception.cpp",
-        "src/fallback_malloc.cpp",
-        "src/private_typeinfo.cpp",
-        "src/stdexcept.cpp",
-        "src/typeinfo.cpp",
-    ],
-    include_dirs: ["external/libcxx/include"],
-    local_include_dirs:  ["include"],
-    export_include_dirs: ["include"],
-    cppflags: [
-        "-std=c++14",
-        "-fexceptions",
-        "-Wall",
-        "-Wextra",
-        "-Wno-unused-function",
-        "-Werror",
-    ],
-    sanitize: {
-        never: true,
-    },
-    stl: "none",
-    rtti: true,
-    arch: {
-        arm: {
-            include_dirs: ["external/libunwind_llvm/include"],
-            cppflags: ["-DLIBCXXABI_USE_LLVM_UNWINDER=1"],
-        },
-        arm64: {
-            cppflags: ["-DLIBCXXABI_USE_LLVM_UNWINDER=0"],
-        },
-        mips: {
-            cppflags: ["-DLIBCXXABI_USE_LLVM_UNWINDER=0"],
-        },
-        mips64: {
-            cppflags: ["-DLIBCXXABI_USE_LLVM_UNWINDER=0"],
-        },
-        x86: {
-            cppflags: ["-DLIBCXXABI_USE_LLVM_UNWINDER=0"],
-        },
-        x86_64: {
-            cppflags: ["-DLIBCXXABI_USE_LLVM_UNWINDER=0"],
-        },
-    },
-    target: {
-        android: {
-            cppflags: ["-DHAVE___CXA_THREAD_ATEXIT_IMPL"],
-        },
-        darwin: {
-            // libcxxabi really doesn't like the non-LLVM assembler on Darwin
-            asflags: ["-integrated-as"],
-            cflags: ["-integrated-as"],
-            cppflags: ["-integrated-as"],
-        },
-    },
-
-}
diff --git a/sources/third_party/googletest/Android.bp b/sources/third_party/googletest/Android.bp
deleted file mode 100644
index 4bd5103..0000000
--- a/sources/third_party/googletest/Android.bp
+++ /dev/null
@@ -1,94 +0,0 @@
-// Copyright (C) 2016 The Android Open Source 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.
-
-cc_defaults {
-    name: "libgtest_defaults",
-    export_include_dirs: ["include"],
-    cflags: ["-Wall", "-Werror", "-Wno-unused-private-field"],
-}
-
-cc_defaults {
-    name: "libgtest_host_defaults",
-    target: {
-        linux_bionic: {
-            enabled: true,
-        },
-        windows: {
-            enabled: true,
-        },
-    },
-}
-
-// NDK libraries.
-// We need to build one pair of (libgtest, libgtest_main) for each of the three
-// STLs we support in the NDK since the user's app might use any of them.
-
-// libc++
-cc_library_static {
-    name: "libgtest_ndk_c++",
-    defaults: ["libgtest_defaults"],
-    sdk_version: "9",
-    stl: "c++_static",
-    srcs: ["src/gtest-all.cc"],
-}
-
-cc_library_static {
-    name: "libgtest_main_ndk_c++",
-    defaults: ["libgtest_defaults"],
-    sdk_version: "9",
-    stl: "c++_static",
-    srcs: ["src/gtest_main.cc"],
-}
-
-// Platform and host libraries.
-cc_library_static {
-    name: "libgtest",
-    defaults: ["libgtest_defaults", "libgtest_host_defaults"],
-    host_supported: true,
-    vendor_available: true,
-    srcs: ["src/gtest-all.cc"],
-    rtti: true,
-}
-
-cc_library_static {
-    name: "libgtest_main",
-    defaults: ["libgtest_defaults", "libgtest_host_defaults"],
-    host_supported: true,
-    vendor_available: true,
-    srcs: ["src/gtest_main.cc"],
-}
-
-// Legacy libraries for makefiles that refer to libgtest_host
-cc_library_host_static {
-    name: "libgtest_host",
-    whole_static_libs: ["libgtest"],
-    defaults: ["libgtest_host_defaults"],
-}
-
-cc_library_host_static {
-    name: "libgtest_main_host",
-    whole_static_libs: ["libgtest_main"],
-    defaults: ["libgtest_host_defaults"],
-}
-
-cc_library {
-    name: "libgtest_prod",
-    defaults: ["libgtest_defaults", "libgtest_host_defaults"],
-    host_supported: true,
-    recovery_available: true,
-    vendor_available: true,
-    export_include_dirs: ["include"],
-}
-
-// Tests are in the Android.mk. Run with external/googletest/run_tests.py.