remove musl release build

Signed-off-by: Brian L. Troutwine <brian.troutwine@datadoghq.com>

Author: blt

.github/workflows/release.yml

@@ -42,12 +42,6 @@ jobs:
           - target: x86_64-unknown-linux-gnu
             os: ubuntu-20.04
 
-          # Musl x86-64 Linux build.
-          - target: x86_64-unknown-linux-musl
-            os: ubuntu-latest
-            cc: 'musl-gcc'
-            cxx: 'explicitly-unset'
-
           # Normal Intel Mac build
           - target: x86_64-apple-darwin
             os: macos-latest
@@ -63,10 +57,6 @@ jobs:
         run: sudo apt-get update && sudo apt-get install -y protobuf-compiler
         if: matrix.os == 'ubuntu-20.04'
 
-      - name: Install protobuf (Apt, Musl)
-        run: sudo apt-get update && sudo apt-get install -y protobuf-compiler
-        if: matrix.os == 'ubuntu-latest'
-
       - name: Install protobuf (Brew)
         run: brew install protobuf
         if: matrix.os == 'macos-latest'
@@ -84,11 +74,6 @@ jobs:
           target: ${{ matrix.target }}
         if: matrix.target == 'aarch64-unknown-linux-gnu'
 
-      # Install musl tools for musl builds
-      - name: Install musl tools
-        run: sudo apt-get update && sudo apt-get install -y musl-tools
-        if: matrix.target == 'x86_64-unknown-linux-musl'
-
       # Run the build & upload artifacts
       - name: Build and upload lading binaries
         uses: taiki-e/upload-rust-binary-action@v1