[try without druntime+Phobos LTO - complaining about missing macos version in triple...]

Author: kinke

Diff for: .github/workflows/main.yml

@@ -84,7 +84,7 @@ jobs:
             # Additionally `-w` to suppress resulting linker warnings.
             extra_cmake_flags: >-
               -DBUILD_LTO_LIBS=ON
-              -DD_COMPILER_FLAGS="-O -flto=full -defaultlib=phobos2-ldc-lto,druntime-ldc-lto -L-exported_symbol '-L__*' -L-w -flto-binary=$PWD/../bootstrap-ldc/lib-x86_64/libLTO.dylib"
+              -DD_COMPILER_FLAGS="-O -flto=full -L-exported_symbol '-L__*' -L-w -flto-binary=$PWD/../bootstrap-ldc/lib-x86_64/libLTO.dylib"
               -DEXTRA_CXXFLAGS=-flto=full
             with_pgo: true