chore: Apple-Clang 15,26 are unsupported

Author: vinniefalco

.github/workflows/ci.yml

@@ -158,18 +158,6 @@ jobs:
           # OSX compilers
           #
 
-          - compiler: "apple-clang"
-            version: "*"
-            cxx: "clang++"
-            cc: "clang"
-            runs-on: "macos-26"
-            b2-toolset: "clang"
-            is-latest: true
-            name: "Apple-Clang (macOS 26)"
-            shared: true
-            build-type: "Release"
-            build-cmake: true
-
           - compiler: "apple-clang"
             version: "*"
             cxx: "clang++"
@@ -194,17 +182,6 @@ jobs:
             build-type: "RelWithDebInfo"
             asan: true
 
-          - compiler: "apple-clang"
-            version: "*"
-            cxx: "clang++"
-            cc: "clang"
-            runs-on: "macos-15"
-            b2-toolset: "clang"
-            name: "Apple-Clang (macOS 15)"
-            shared: false
-            build-type: "Release"
-            build-cmake: true
-
           - compiler: "apple-clang"
             version: "*"
             cxx: "clang++"