Remove -static in ci-windows-artifacts workflow (#2648)

diff --git a/.github/workflows/ci-windows-artifacts.yml b/.github/workflows/ci-windows-artifacts.yml
index 48d85e9..a2fab4e 100644
--- a/.github/workflows/ci-windows-artifacts.yml
+++ b/.github/workflows/ci-windows-artifacts.yml
@@ -56,7 +56,6 @@
 
       - name: Prepare libavif (cmake)
         run: >
-          CFLAGS=-static CXXFLAGS=-static LDFLAGS=-static
           cmake -G Ninja -S . -B build
           -DCMAKE_BUILD_TYPE=Release -DBUILD_SHARED_LIBS=OFF
           -DAVIF_CODEC_AOM=LOCAL -DAVIF_CODEC_AOM_ENCODE=ON