Fix "make dist"

Remove a dependency on the OTA package for now.
diff --git a/core/main.mk b/core/main.mk
index 159b19a..9f2c595 100644
--- a/core/main.mk
+++ b/core/main.mk
@@ -578,9 +578,10 @@
 .PHONY: droid user userdebug tests
 droid user userdebug tests: droidcore
 
+#TODO: restore support for building OTA packages
+#	$(INTERNAL_OTA_PACKAGE_TARGET) \
 $(call dist-for-goals,user userdebug droid, \
 	$(INTERNAL_UPDATE_PACKAGE_TARGET) \
-	$(INTERNAL_OTA_PACKAGE_TARGET) \
 	$(SYMBOLS_ZIP) \
 	$(APPS_ZIP) \
 	$(HOST_OUT_EXECUTABLES)/adb$(HOST_EXECUTABLE_SUFFIX) \