Revert "comment simulate_receive_spec.rb"

This reverts commit c4708e24d36b86b1e1bbb1107cd76df5e5d26cdf.
Revert "request receive: fix setting @accept, do not accept closed pull requests"

This reverts commit 55659989ecc4aba0ef962e0ea9383f5c88d3bfd5.
Revert "matrix expansion: do not explode on bad matrix include values"

This reverts commit b40680ba42860ec8ca057b0031026a6c7f54e617.
Revert "matrix exansion: do not explode on bad config keys"

This reverts commit 2fb1c44eec0eab88091e3208ec4c7e9ad7ec7ef3.
Revert "request receive: add more specs for known edge cases"

This reverts commit f5285d33bd23152b8becebb986c637f310f382ff.
Revert "request receive: add a safeguard for repositories that do not have an owner"

This reverts commit a52c47781cabe369bc8a17c36c15ef17edf6a5ce.
Revert "request receive: add tests for when the payload does not contain any commits"

This reverts commit 6dfc0d6b17ef4203b0b0927cbee1aab7c0ff6ed1.
Revert "request receive: add some extra safe guards"

This reverts commit 0f2a851bd29d136f5aaa501d891aa94058e9ff16.