qga/vss-win32: require widl/midl, remove pre-built TLB file

There are no good reason anymore to keep a pre-built file in the repository.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Konstantin Kostiuk <kkostiuk@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
diff --git a/meson.build b/meson.build
index 2818b93..8d9898c 100644
--- a/meson.build
+++ b/meson.build
@@ -307,8 +307,12 @@
 emulator_link_args = []
 nvmm =not_found
 hvf = not_found
+midl = not_found
+widl = not_found
 host_dsosuf = '.so'
 if targetos == 'windows'
+  midl = find_program('midl', required: false)
+  widl = find_program('widl', required: false)
   socket = cc.find_library('ws2_32')
   winmm = cc.find_library('winmm')