[CI] Disable NNPACK build and fix error on Android SDK installaion

[mshr-h]

Fix #17070

[mshr-h]

@tqchen Thank you for your review. Please let me know if there's anything else that should be changed besides removing the NNPACK installation.

[yongwww]

@tvm-bot rerun

[yongwww]

we can find the nnpack related code under /contrib/nnpack/, and some operations like _conv2d_arm_cpu_winograd_nnpack, I guess we will need to gradually deprecate those in the future.

[tqchen]

we can remove the related supporting code as well as long as they are legacy, especially given we ar emoving towards relax

[mshr-h]

Looking at the docker ci build log, it seems like the Android SDK installation is failing.
https://ci.tlcpack.ai/blue/organizations/jenkins/tvm-docker/detail/PR-17337/3/pipeline

[2024-09-10T15:30:06.331Z] 14.60 Accept? (y/N): All SDK package licenses accepted
[2024-09-10T15:30:06.331Z] 14.60 done
[2024-09-10T15:30:06.331Z] 15.46 Warning: Failed to find package extras;m2repository;com;android;support;constraint;constraint-layout;1.0.2
[2024-09-10T15:30:06.331Z] ------
[2024-09-10T15:30:06.331Z] Dockerfile.ci_cpu:130
[2024-09-10T15:30:06.331Z] --------------------
[2024-09-10T15:30:06.331Z] 128 | # Android SDK
[2024-09-10T15:30:06.331Z] 129 | COPY install/ubuntu_install_androidsdk.sh /install/ubuntu_install_androidsdk.sh
[2024-09-10T15:30:06.331Z] 130 | >>> RUN bash /install/ubuntu_install_androidsdk.sh
[2024-09-10T15:30:06.331Z] 131 |
[2024-09-10T15:30:06.331Z] 132 | # PaddlePaddle deps
[2024-09-10T15:30:06.331Z] --------------------
[2024-09-10T15:30:06.331Z] ERROR: failed to solve: process "/bin/sh -c bash /install/ubuntu_install_androidsdk.sh" did not complete successfully: exit code: 1
[2024-09-10T15:30:06.331Z] ERROR: docker build failed.

[tqchen]

We can disable/remove the android docker for now given most android SDK are used without docker atm