Disable Mac CI for now: XQuartz breaks on Github Actions

.github/workflows/main.yml

@@ -35,17 +35,17 @@ jobs:
           ./configure
           make database/database.h
           make -j$(nproc)
-  simple_build_mac:
-    runs-on: macos-11
-    steps:
-      - uses: actions/checkout@v2
-      - name: Get Dependencies
-        run: |
-          brew install --cask xquartz
-          brew install cairo tcl-tk tcsh
-      - name: Build
-        run: |
-          export PATH="/opt/X11/bin:$PATH"
-          ./scripts/configure_mac
-          make database/database.h
-          make -j$(sysctl -n hw.ncpu)
+  # simple_build_mac:
+  #   runs-on: macos-11
+  #   steps:
+  #     - uses: actions/checkout@v2
+  #     - name: Get Dependencies
+  #       run: |
+  #         brew install --cask xquartz
+  #         brew install cairo tcl-tk tcsh
+  #     - name: Build
+  #       run: |
+  #         export PATH="/opt/X11/bin:$PATH"
+  #         ./scripts/configure_mac
+  #         make database/database.h
+  #         make -j$(sysctl -n hw.ncpu)