Apply clang-format diffs.

src/core/ext/transport/chttp2/transport/chttp2_transport.c

src/core/ext/transport/chttp2/transport/incoming_metadata.h

src/core/ext/transport/chttp2/transport/parsing.c

src/core/lib/transport/metadata.h

src/core/lib/transport/metadata_batch.c

test/core/bad_client/bad_client.c

test/core/bad_client/bad_client.h

test/core/bad_client/tests/large_metadata.c

test/core/end2end/fixtures/h2_ssl_proxy.c

test/core/end2end/fixtures/proxy.c

test/core/end2end/fixtures/proxy.h

test/core/end2end/tests/large_metadata.c