Cleaned up GH actions

Author: zfergus

.github/workflows/continuous.yml

@@ -41,18 +41,11 @@ jobs:
         run: |
           sudo apt-get update
           sudo apt-get -o Acquire::Retries=3 install \
-          libblas-dev \
-          libboost-filesystem-dev \
-          libboost-system-dev \
-          libboost-thread-dev \
-          libglu1-mesa-dev \
-          libsuitesparse-dev \
-          xorg-dev \
           ccache
 
       - name: Dependencies (macOS)
         if: runner.os == 'macOS'
-        run: brew install suite-sparse ccache
+        run: brew install ccache
 
       - name: Cache Build
         id: cache-build
@@ -101,11 +94,11 @@ jobs:
           fetch-depth: 10
       - uses: seanmiddleditch/gha-setup-ninja@master
         # https://github.com/actions/cache/issues/101
-     
+
       - name: Set env
         run: |
           echo "appdata=$env:LOCALAPPDATA" >> ${env:GITHUB_ENV}
-      
+
       - name: Cache build
         id: cache-build
         uses: actions/cache@v1