Don’t try to build static stdlibs on macOS package bots

These have not been supported since ABI stability and we recently added an error that causes some tests to fail.

Author: beccadax

utils/build-presets.ini

@@ -1131,8 +1131,6 @@ lldb-use-system-debugserver
 lldb-build-type=Release
 verbose-build
 build-ninja
-build-swift-static-stdlib
-build-swift-static-sdk-overlay
 build-swift-stdlib-unittest-extra
 playgroundsupport-build-type=Release