ci: remove bors mention

We are using github merge queues for some time now, instead of bors.
Remove unmaintained files, and remove bors mentions.

ChangeLog:

	* .github/bors_log_expected_warnings: Move to...
	* .github/log_expected_warnings: ...here.
	* .github/workflows/ccpp.yml:
	* .github/workflows/ccpp32alpine.yml:
	* CONTRIBUTING.md:
	* README.md:
	* .github/bors.toml: Removed.

Signed-off-by: Marc Poulhiès <[email protected]>

Author: dkm

.github/bors.toml

@@ -16,7 +16,7 @@ jobs:
   build-and-check-ubuntu-64bit:
 
     env:
-      # Force locale, in particular for reproducible results re '.github/bors_log_expected_warnings' (see below).
+      # Force locale, in particular for reproducible results re '.github/log_expected_warnings' (see below).
       LC_ALL: C.UTF-8
 
     runs-on: ubuntu-22.04
@@ -68,7 +68,7 @@ jobs:
       run: |
            cd gccrs-build
            < log grep 'warning: ' | sort > log_warnings
-           if diff -U0 ../.github/bors_log_expected_warnings log_warnings; then
+           if diff -U0 ../.github/log_expected_warnings log_warnings; then
                :
            else
                echo 'See <https://github.com/Rust-GCC/gccrs/pull/1026>.'
@@ -100,7 +100,7 @@ jobs:
   build-and-check-ubuntu-64bit-glibcxx:
 
     env:
-      # Force locale, in particular for reproducible results re '.github/bors_log_expected_warnings' (see below).
+      # Force locale, in particular for reproducible results re '.github/log_expected_warnings' (see below).
       LC_ALL: C.UTF-8
 
     runs-on: ubuntu-22.04
@@ -185,7 +185,7 @@ jobs:
   build-and-check-ubuntu-32bit:
 
     env:
-      # Force locale, in particular for reproducible results re '.github/bors_log_expected_warnings' (see below).
+      # Force locale, in particular for reproducible results re '.github/log_expected_warnings' (see below).
       LC_ALL: C.UTF-8
 
     runs-on: ubuntu-22.04
@@ -237,7 +237,7 @@ jobs:
       run: |
            cd gccrs-build
            < log grep 'warning: ' | sort > log_warnings
-           if diff -U0 ../.github/bors_log_expected_warnings log_warnings; then
+           if diff -U0 ../.github/log_expected_warnings log_warnings; then
                :
            else
                echo 'See <https://github.com/Rust-GCC/gccrs/pull/1026>.'
@@ -405,7 +405,7 @@ jobs:
   build-and-check-asan:
 
     env:
-      # Force locale, in particular for reproducible results re '.github/bors_log_expected_warnings' (see below).
+      # Force locale, in particular for reproducible results re '.github/log_expected_warnings' (see below).
       LC_ALL: C.UTF-8
 
     runs-on: ubuntu-22.04
@@ -459,7 +459,7 @@ jobs:
 #      run: |
 #           cd gccrs-build
 #           < log grep 'warning: ' | sort > log_warnings
-#           if diff -U0 ../.github/bors_log_expected_warnings log_warnings; then
+#           if diff -U0 ../.github/log_expected_warnings log_warnings; then
 #               :
 #           else
 #               echo 'See <https://github.com/Rust-GCC/gccrs/pull/1026>.'

.github/bors_log_expected_warnings renamed to .github/log_expected_warnings

@@ -16,7 +16,7 @@ jobs:
   build-alpine-32bit-and-check-alpine-32bit:
 
     env:
-      # Force locale, in particular for reproducible results re '.github/bors_log_expected_warnings' (see below).
+      # Force locale, in particular for reproducible results re '.github/log_expected_warnings' (see below).
       LC_ALL: C.UTF-8
 
     runs-on: ubuntu-22.04

.github/workflows/ccpp.yml

@@ -39,7 +39,7 @@ and the link to the GitHub PR sent to the submitter.
 * The PR policy: Everything has to go through a PR
   - An exception to this rule will be the merge commits of updating the repo against upstream GCC
 
-* Reviewers/Maintainers of the project (aka people who have bors rights) should be pinged for reviews/questions.
+* Reviewers/Maintainers of the project should be pinged for reviews/questions.
 
 * A PR can have one or several commits (split should have a technical/logical reason, ie. no fixup-ish commit)
 

.github/workflows/ccpp32alpine.yml

@@ -3,7 +3,6 @@
 [![Build Docker image](https://github.com/Rust-GCC/gccrs/actions/workflows/docker.yml/badge.svg)](https://github.com/Rust-GCC/gccrs/actions/workflows/docker.yml)
 ![Docker Pulls](https://img.shields.io/docker/pulls/philberty/gccrs)
 [![project chat](https://img.shields.io/badge/zulip-join_chat-brightgreen.svg)](https://gcc-rust.zulipchat.com/)
-[![Bors enabled](https://bors.tech/images/badge_small.svg)](https://app.bors.tech/repositories/32890)
 [![justforfunnoreally.dev badge](https://img.shields.io/badge/justforfunnoreally-dev-9ff)](https://justforfunnoreally.dev)
 # GCC Rust
 ![GCC Rust](logo.png?raw=true "GCC rust Logo")
@@ -255,7 +254,7 @@ With that, we're missing out on the aspect that _enforces that GCC compiles with
 To encounter that, the default CI has a [_check for new warnings_ step](https://github.com/Rust-GCC/gccrs/pull/1026)
 that verifies in the CI `--disable-bootstrap` build configuration that no new warnings are introduced.
 If that step fails, it usually points out a new _warning_ you've introduced erroneously, and should address.
-Occasionally it means that simply the `.github/bors_log_expected_warnings` file needs to be updated,
+Occasionally it means that simply the `.github/log_expected_warnings` file needs to be updated,
 for example if due to any kind of "environmental changes" (for example, CI "initial" compiler changes).
 Unless diligently reproducing the CI configuration (in particular "initial" compiler, GCC version),
 it's not really feasible to reproduce this check locally.