Drop AndroidX dependency

Cronet in AOSP doesn't require AndroidX. The only remaning use of
AndroidX upstream is BuildCompat#isAtLeastT, but here that makes use of
SdkLevel#isAtLeastT.

Test: ./update_result.sh && m
Change-Id: I46634e62f875072347b21235a695ebca6b03e3b5
diff --git a/tools/gn2bp/gen_android_bp b/tools/gn2bp/gen_android_bp
index 380e08d..dcf8897 100755
--- a/tools/gn2bp/gen_android_bp
+++ b/tools/gn2bp/gen_android_bp
@@ -1516,8 +1516,6 @@
   module.libs = {
     "androidx.annotation_annotation",
     "jsr305",
-    "androidx.core_core-nodeps",
-    "androidx.collection_collection",
     "androidx.annotation_annotation-experimental-nodeps",
     "framework-connectivity.stubs.module_lib",
     "framework-connectivity-t.stubs.module_lib",