Revert "build: Patch Qt to handle minimum macOS version properly"

This reverts commit 05aca09381.

depends/patches/qt/fix-minimum-macos.patch

@@ -1,18 +0,0 @@
-Ensure that Qt handles the minimum macOS version properly
-
-This patch can be dropped for LLVM Clang 17+, after commit
-https://github.com/llvm/llvm-project/commit/c8e2dd8c6f490b68e41fe663b44535a8a21dfeab
-
-
---- a/qtbase/src/corelib/global/qsystemdetection.h
-+++ b/qtbase/src/corelib/global/qsystemdetection.h
-@@ -220,6 +220,9 @@
- #  include <Availability.h>
- #  include <AvailabilityMacros.h>
- #
-+#  undef __MAC_OS_X_VERSION_MIN_REQUIRED
-+#  define __MAC_OS_X_VERSION_MIN_REQUIRED MAC_OS_X_VERSION_MIN_REQUIRED
-+#
- #  ifdef Q_OS_MACOS
- #    if !defined(__MAC_OS_X_VERSION_MIN_REQUIRED) || __MAC_OS_X_VERSION_MIN_REQUIRED < __MAC_10_6
- #       undef __MAC_OS_X_VERSION_MIN_REQUIRED