Delete old benchmark system #272

Job	Run time
build-native-ubuntu-latest-gcc	2m 51s
build-native-ubuntu-latest-gcc	2m 51s
build-native-ubuntu-latest-llvm	3m 46s
build-native-ubuntu-latest-llvm	3m 46s
build-native-ah-ubuntu_22_04-c7g_2x-50-gcc	2m 39s
build-native-ah-ubuntu_22_04-c7g_2x-50-gcc	2m 39s
build-native-ah-ubuntu_22_04-c7g_2x-50-llvm	2m 6s
build-native-ah-ubuntu_22_04-c7g_2x-50-llvm	2m 6s
test-native-ubuntu-latest-gcc	9m 26s
test-native-ubuntu-latest-gcc	9m 26s
build-armhf-gcc	1m 49s
build-armhf-gcc	1m 49s
test-native-ubuntu-latest-llvm	7m 23s
test-native-ubuntu-latest-llvm	7m 23s
build-armhf-llvm	1m 17s
build-armhf-llvm	1m 17s
test-native-ah-ubuntu_22_04-c7g_2x-50-gcc	31s
test-native-ah-ubuntu_22_04-c7g_2x-50-gcc	2m 59s
build-ppc64el-gcc	2m 34s
build-ppc64el-gcc	2m 34s
test-native-ah-ubuntu_22_04-c7g_2x-50-llvm	2m 46s
test-native-ah-ubuntu_22_04-c7g_2x-50-llvm	2m 46s
build-ppc64el-llvm	2m 21s
build-ppc64el-llvm	2m 21s
build-s390x-gcc	2m 34s
build-s390x-gcc	2m 34s
build-s390x-llvm	2m 5s
build-s390x-llvm	2m 5s
build-riscv64-llvm	2m 16s
build-riscv64-llvm	2m 16s
test-${{ matrix.arch }}-${{ matrix.compiler }} (qemu_cpu: "${{ matrix.qemu_cpu }}")	0s
test-${{ matrix.arch }}-${{ matrix.compiler }} (qemu_cpu: "${{ matrix.qemu_cpu }}")	0s
	1h 35m 16s

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