Merge pull request #959 from jmikola/evg-macos

Remove macOS from Evergreen matrix (pending PHPC-869)

Author: jmikola

.evergreen/config.yml

@@ -641,9 +641,10 @@ axes:
       - id: ubuntu1604-arm64
         display_name: "Ubuntu 16.04 ARM64"
         run_on: ubuntu1604-arm64-large
-      - id: macos-1014
-        display_name: "Mac OS 10.14"
-        run_on: macos-1014
+      # Pending installation of PHP toolchain on macOS hosts (see: PHPC-869)
+      # - id: macos-1014
+      #   display_name: "Mac OS 10.14"
+      #   run_on: macos-1014
 
   - id: storage-engine
     display_name: Storage