remove docker and netsim tests #20

Job	Run time
Checking docs	2m 11s
Checking fmt	1m 7s
Android Build Only (aarch64-linux-android)	1m 44s
Android Build Only (armv7-linux-androideabi)	1m 2s
check_semver	3m 10s
Cross Build Only (x86_64-unknown-freebsd)	39s
Cross Test (i686-unknown-linux-gnu)	52s
cargo deny	33s
clippy_check	3m 0s
Minimal Supported Rust Version	2m 55s
codespell	7s
CI Test Suite / Tests (windows-latest, stable, all, x86_64-pc-windows-msvc)	1m 25s
CI Test Suite / Tests (windows-latest, stable, none, x86_64-pc-windows-msvc)	1m 6s
CI Test Suite / Tests (ubuntu-latest, stable, all)	1m 8s
CI Test Suite / Tests (ubuntu-latest, stable, none)	1m 5s
CI Test Suite / Tests (windows-latest, stable, default, x86_64-pc-windows-msvc)	1m 12s
CI Test Suite / Tests (ubuntu-latest, stable, default)	1m 6s
CI Test Suite / Tests (macOS-arm-latest, stable, all)	1m 25s
CI Test Suite / Tests (macOS-arm-latest, stable, none)	41s
CI Test Suite / Tests (macOS-arm-latest, stable, default)	1m 52s
	28m 20s

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