issue #4223: remove hls_acodec and hls_vcodec config. #3651

Job	Run time
multiple-arch-armv7	22m 19s
cygwin64-cache	1m 57s
utest-regression-blackbox-test	9m 12s
multiple-arch-aarch64	22m 50s
fast	1s
cygwin64	15m 21s
build-centos7	4m 53s
build-ubuntu16	3m 4s
build-cross-aarch64	5m 10s
build-cross-arm	5m 14s
build-ubuntu18	3m 10s
build-ubuntu20	3m 26s
coverage	3m 43s
multiple-arch-amd64	2m 25s
test-done	1s
	1h 42m 46s

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