Remove ARCHFLAGS from MacOS before_all block

Author: molinav

.github/workflows/build.yml

@@ -61,15 +61,13 @@ jobs:
           - os: macos-13
             arch: x86_64
             before_all: >-
-              ARCHFLAGS="-arch x86_64 -arch arm64"
               echo "Starting BEFORE_ALL script" &&
               echo "GEOS_DIR set to: ${GEOS_DIR}" &&
               cd "{package}" &&
               python -c "import utils; utils.GeosLibrary('${GEOS_VERSION}').build('${GEOS_DIR}', njobs=2)"
           - os: macos-14
             arch: arm64
             before_all: >-
-              ARCHFLAGS="-arch x86_64 -arch arm64"
               echo "Starting BEFORE_ALL script" &&
               echo "GEOS_DIR set to: ${GEOS_DIR}" &&
               cd "{package}" &&