Do not include tests in relibc package

recipes/relibc/recipe.sh

@@ -2,14 +2,11 @@ GIT=https://gitlab.redox-os.org/redox-os/relibc.git
 
 function recipe_build {
     make CARGO=xargo -j"$(nproc)"
-    make CARGO=xargo -C tests -j"$(nproc)"
     skip=1
 }
 
 function recipe_stage {
     dest="$(realpath $1)"
     make CARGO=xargo DESTDIR="$dest" install
-    mkdir -pv "$dest/share/relibc"
-    cp -rv "tests" "$dest/share/relibc/tests"
     skip=1
 }