minetest: remove unused patches

pkgs/games/minetest/disable_fixup.patch

@@ -1,10 +0,0 @@
---- a/src/CMakeLists.txt
-+++ b/src/CMakeLists.txt
-@@ -802,7 +802,6 @@
- 		install(CODE "
- 			set(BU_CHMOD_BUNDLE_ITEMS ON)
- 			include(BundleUtilities)
--			fixup_bundle(\"\${CMAKE_INSTALL_PREFIX}/${BUNDLE_PATH}\" \"\" \"\${CMAKE_INSTALL_PREFIX}/${BINDIR}\")
- 		" COMPONENT Runtime)
- 	endif()
- 

pkgs/games/minetest/fix_wordsize_confusion.patch

@@ -1,10 +0,0 @@
---- a/src/main.cpp
-+++ b/src/main.cpp
-@@ -17,6 +17,7 @@
- 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
- 
-+#include <cstdint>
- #include "irrlicht.h" // createDevice
- #include "irrlichttypes_extrabloated.h"
- #include "chat_interface.h"