Remove extraneous CI info

Author: jhpratt

.github/workflows/build.yaml

@@ -33,13 +33,10 @@ jobs:
       matrix:
         target:
           #  name: Windows
-          #  host: windows-latest
           #  triple: x86_64-pc-windows-gnu
           - name: Linux
-            host: ubuntu-latest
             triple: x86_64-unknown-linux-gnu
           - name: macOS
-            host: macos-latest
             triple: x86_64-apple-darwin
           - name: FreeBSD
             triple: x86_64-unknown-freebsd