docs: remove mac build

Author: qubka

.github/workflows/clang.yml

@@ -26,7 +26,7 @@ jobs:
       fail-fast: false
 
       matrix:
-        os: [ubuntu-latest, macos-latest-large]
+        os: [ubuntu-latest]
         build_type: [Release]
         c_compiler: [clang]
         cpp_compiler: [clang++]