VP8: Don't forward higher temporal layer packets. (Upstream Pending PR) #2

Job	Run time
ci (ubuntu-20.04, 18, gcc, g++, Release)	6m 21s
ci (ubuntu-20.04, 18, gcc, g++, Debug)	8m 23s
ci (ubuntu-22.04, 20, gcc, g++, Release)	5m 40s
ci (ubuntu-22.04, 20, gcc, g++, Debug)	5m 29s
ci (ubuntu-22.04, 22, gcc, g++, Release)	5m 44s
ci (ubuntu-22.04, 22, gcc, g++, Debug)	7m 25s
ci (ubuntu-24.04, 22, gcc, g++, -Db_sanitize=address, Release)	8m 55s
ci (ubuntu-24.04, 22, gcc, g++, -Db_sanitize=address, Debug)	8m 32s
ci (ubuntu-24.04, 22, clang, clang++, -Db_sanitize=undefined, Release)	8m 45s
ci (ubuntu-24.04, 22, clang, clang++, -Db_sanitize=undefined, Debug)	7m 15s
ci (ubuntu-24.04, 22, gcc, g++, -Db_sanitize=thread, Release)	7m 6s
ci (ubuntu-24.04, 22, gcc, g++, -Db_sanitize=thread, Debug)	6m 20s
ci (macos-12, 18, clang, clang++, Release)	1s
ci (macos-12, 18, clang, clang++, Debug)	1s
ci (macos-14, 20, clang, clang++, Release)	1s
ci (macos-14, 20, clang, clang++, Debug)	1s
ci (macos-14, 22, clang, clang++, Release)	1s
ci (macos-14, 22, clang, clang++, Debug)	1s
ci (windows-2022, 20, cl, cl, Release)	8m 40s
ci (windows-2022, 20, cl, cl, Debug)	7m 44s
ci (windows-2022, cl, cl, 22, Release)	8m 42s
ci (windows-2022, cl, cl, 22, Debug)	7m 24s
	1h 58m 31s

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