Remove unused microdroid kernel module build rules am: d83a4bd34d am: f856f8982e am: 0231ae4b88

Original change: https://android-review.googlesource.com/c/kernel/prebuilts/common-modules/virtual-device/5.10/arm64/+/2276909

Change-Id: Ic991177c37fabcd807fb82f0003840e0fd81033b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>