[automerger skipped] cronet tests: remove most of NetHttpTestsLibPreJarJar am: ea96671c8b -s ours

am skip reason: Merged-In I25c6371c64e6cfcbb48e9e3f2976d47279791f21 with SHA-1 cc2e2dcb44 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/23452730

Change-Id: Iebc828081fe9977538a897deff72a7b90f5116bc
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>