This reverts commit 9a0356b1.

Fix unnecessary slice moving in slice_buffer.c:maybe_embiggen

Fix Error Overflow Bug

Update PROTOCOL-WEB.md

Switch C# distribtest to use windows-built nugets

Upmerge from upstream/v1.2.x to master

Port #10157: Advance ProtoCompiler version and fix podspecs

Microbenchmark for measuring impact of multiple threads calling cq_next

Dynamically adjust TCP read buffer size

Lazily create parent/child structures

If I had a nickle...

Upgrade Node dependency on Protobuf.js to version 6

Fix headers included in max_age_filter.c

Make C# docker image in sync with GCE performance workers

Change pollset rules