fixup! Tweaks to the build system

Disable inclusion of browser/installer/windows into packaged development
artifacts. That file is not included by our builds -- at least not by
the ones done by tor-browser-build.

Attempting to zip the unexisting folder will crash `./mach package` when
building inside tor-browser-build.

toolkit/mozapps/installer/packager.mk

@@ -135,7 +135,7 @@ make-package: FORCE
 	$(MAKE) make-package-internal
 ifeq (WINNT,$(OS_ARCH))
 ifeq ($(MOZ_PKG_FORMAT),ZIP)
-	$(MAKE) -C windows ZIP_IN='$(ABS_DIST)/$(PACKAGE)' installer
+#	$(MAKE) -C windows ZIP_IN='$(ABS_DIST)/$(PACKAGE)' installer
 endif
 endif
 ifdef MOZ_AUTOMATION