github: remove the cmake macOS gcc-8 jobs

They're too similar to the gcc-9 ones to be useful (and seems to not
work anymore).

Closes #7187

diff --git a/.github/workflows/macos.yml b/.github/workflows/macos.yml
index 965b12015b257ce5d9ad42ffce0f687089c45da8..368ff04018ac24dcf60700e64459a9243836cd52 100644 (file)
--- a/.github/workflows/macos.yml
+++ b/.github/workflows/macos.yml
@@ -100,9 +100,6 @@ jobs:
         - CC: clang
           CXX: clang++
           CFLAGS: "-mmacosx-version-min=10.15 -Wno-deprecated-declarations"
-        - CC: gcc-8
-          CXX: g++-8
-          CFLAGS: "-mmacosx-version-min=10.15 -Wno-error=undef -Wno-error=conversion"
         - CC: gcc-9
           CXX: g++-9
           CFLAGS: "-mmacosx-version-min=10.15 -Wno-error=undef -Wno-error=conversion"