sage.sh: drop nonexistent --with-system-typing_extensions

It needs an spkg-configure.m4 still

diff --git a/sage.sh b/sage.sh
index 844e9c1daabf6a4cb80477c22cb3dd61bf6c5045..d2c278f36d03c3077838d166d75e5935552116fb 100644 (file)
--- a/sage.sh
+++ b/sage.sh
@@ -131,7 +131,6 @@ sage-configure() {
     --with-system-tornado=force \
     --with-system-tox=force \
     --with-system-traitlets=force \
-    --with-system-typing_extensions=force \
     --with-system-urllib3=force \
     --with-system-wcwidth=force \
     --with-system-wheel=force \