remove unused flags

Author: sebsto

.github/workflows/pull_request.yml

@@ -55,4 +55,4 @@ jobs:
       - name: Install SDK
         run: swift sdk install https://download.swift.org/swift-6.0.1-release/static-sdk/swift-6.0.1-RELEASE/swift-6.0.1-RELEASE_static-linux-0.0.1.artifactbundle.tar.gz --checksum d4f46ba40e11e697387468e18987ee622908bc350310d8af54eb5e17c2ff5481
       - name: Build
-        run: swift build --swift-sdk x86_64-swift-linux-musl ${PACKAGE_PATH} ${EXTRA_FLAGS} ${EXTRA_MUSL_FLAGS} ${WARNINGS_AS_ERRORS}
+        run: swift build --swift-sdk x86_64-swift-linux-musl