81829 Revert “Migrate to ChannelBuffers.push” (a: tests, team, framework, f: material design, a: accessibility, cla: yes, f: cupertino, d: examples)

81859 remove unnecessary String.toString() (a: tests, team, tool, framework, f: material design, cla: yes, waiting for tree to go green)

81961 Only skip license initialization on flutter test binding (a: tests, team, tool, framework, cla: yes, waiting for tree to go green)

82005 Revert “Reland GC related bench update” (a: tests, team, framework, cla: yes)

82042 Reland GC benchmark changes again (a: tests, team, framework, cla: yes, waiting for tree to go green)