Bug 1036830 - build failed if camera-config.js in distribution directory doesn't exist r=gduan
Revert "Bug 1036830 - build failed if camera-config.js in distribution directory doesn't exist r=gduan"

This reverts commit c9fb6b5a763d744a991aa0b26a22ef988fde8ab7.
Merge pull request #22714 from yurenju/camera-config-2

Bug 1036830 - build failed if camera-config.js in distribution directory doesn't exist r=gduan
Bug 1029385 - Rewrite app-makefile rule in javascript