HACK: remove patch from mxe

We can rely on system patch being available

Author: akoeplinger

build-tools/android-toolchain/android-toolchain.targets

@@ -146,6 +146,7 @@
         Condition=" !$(AndroidMxeFullPath.EndsWith ($(_MxeHash))) "
         Text="%24(AndroidMxeFullPath) value of `$(AndroidMxeFullPath)` MUST end with `$(_MxeHash)`!"
     />
+    <Delete Files="..\..\external\mxe\plugins\native\darwin\patch.mk" TreatErrorsAsWarnings="true" />
     <Exec
         Condition="$(AndroidSupportedHostJitAbisForConditionalChecks.Contains (':mxe-Win32:'))"
         Command="make MXE_TARGETS=&quot;$(MingwCommandPrefix32)&quot; gcc cmake zlib pthreads dlfcn-win32 mman-win32 PREFIX=&quot;$(AndroidMxeFullPath)&quot;"