cm-12.0: frameworks/native: remove patches commits merged in source

https://github.com/CyanogenMod/android_frameworks_native/commit/4e7f61fd6a36345e7994c236d1c128c4c8a6a0ea

https://github.com/CyanogenMod/android_frameworks_native/commit/db4cec0e189b84e5999ae5b3bef0e7a6c2bb3087